commit b748805c71e54352d4b545f6a4902058b47b4573 Author: Eliott Date: Thu Jul 31 16:26:52 2025 +0200 Initial BBeOS project structure and detailed phase documentation diff --git a/README.md b/README.md new file mode 100644 index 0000000..72463e6 --- /dev/null +++ b/README.md @@ -0,0 +1,99 @@ +# BBeOS - BlackBerry Classic Linux OS + +A lightweight, secure, non-Android, Linux-based operating system for the BlackBerry Classic (Q20) that transforms this iconic device into a modern, privacy-focused smartphone. + +## 🎯 Project Goals + +- **Native Hardware Support**: Boot on ARMv7 architecture with full hardware integration +- **Physical Interface Optimization**: GUI designed for trackpad navigation and physical keyboard +- **Core Telephony**: Complete phone functionality (calling, SMS, Wi-Fi, GPS) +- **Security-First**: Privacy-focused design with minimal attack surface +- **Open Source**: Community-driven development with transparent codebase + +## 📋 Hardware Specifications + +### BlackBerry Classic (Q20) Hardware +- **SoC**: Qualcomm MSM8960 (Snapdragon S4 Plus) - ARMv7 dual-core 1.5GHz +- **GPU**: Adreno 225 +- **RAM**: 2GB LPDDR2 +- **Storage**: 16GB eMMC +- **Display**: 3.5" 720x720 IPS LCD (1:1 aspect ratio) +- **Keyboard**: Physical QWERTY with trackpad +- **Modem**: Qualcomm MDM9615 (LTE/3G) +- **Connectivity**: Wi-Fi 802.11n, Bluetooth 4.0, GPS +- **Battery**: 2515mAh removable + +## 🏗️ Project Structure + +``` +BBeOS/ +├── docs/ # Documentation and research +├── hardware/ # Hardware specifications and drivers +├── kernel/ # Linux kernel configuration +├── rootfs/ # Root filesystem builds +├── ui/ # User interface components +├── telephony/ # Phone and messaging stack +├── tools/ # Development and build tools +├── scripts/ # Automation scripts +└── releases/ # Release builds and images +``` + +## 🚀 Development Phases + +### Phase 1: Research & Feasibility (1-2 months) +- Hardware specification analysis +- Bootloader investigation +- Firmware extraction and analysis +- Go/No-Go decision + +### Phase 2: Bootstrapping (2-4 months) +- Minimal Linux kernel boot +- Basic hardware access +- Development environment setup + +### Phase 3: Hardware Support (2-4 months) +- Device drivers development +- Input/output systems +- Display and audio support + +### Phase 4: User Interface (2-3 months) +- Wayland-based GUI +- Keyboard-centric navigation +- Core applications + +### Phase 5: Telephony Stack (2-4 months) +- Modem integration +- Call/SMS functionality +- Network connectivity + +### Phase 6: Packaging & Updates (2 months) +- System packaging +- Update mechanisms +- Security hardening + +### Phase 7: Community & SDK (Ongoing) +- Developer tools +- Application ecosystem +- Documentation + +## 🔧 Technical Stack + +- **Kernel**: Linux 6.x with MSM8960 support +- **Init System**: systemd or OpenRC +- **Display Server**: Wayland with custom compositor +- **UI Framework**: Qt 6 or GTK 4 +- **Telephony**: ofono/ModemManager +- **Package Management**: OSTree + Flatpak +- **Build System**: Buildroot or Yocto + +## 📚 Getting Started + +See the [Development Guide](docs/development.md) for setup instructions and the [Hardware Reference](docs/hardware.md) for detailed specifications. + +## 🤝 Contributing + +This is an open-source project. See [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines. + +## 📄 License + +GPL v3 - See [LICENSE](LICENSE) for details. \ No newline at end of file diff --git a/docs/PHASE_1_RESEARCH.md b/docs/PHASE_1_RESEARCH.md new file mode 100644 index 0000000..ae02cda --- /dev/null +++ b/docs/PHASE_1_RESEARCH.md @@ -0,0 +1,260 @@ +# Phase 1: Research & Feasibility Analysis + +## 🎯 Objectives +Establish technical feasibility and create a comprehensive hardware reference for the BlackBerry Classic (Q20) to determine if a custom Linux OS is viable. + +## 📋 Detailed Tasks + +### 1.1 Hardware Specification Collection + +#### 1.1.1 SoC Analysis - Qualcomm MSM8960 +- **Architecture**: ARMv7 dual-core Krait 200/300 +- **Frequency**: 1.5GHz (max) +- **Manufacturing**: 28nm LP process +- **Memory Interface**: LPDDR2-1066 +- **ISP**: 20MP camera support +- **Video**: 1080p encode/decode + +**Research Tasks:** +- [ ] Document all available GPIO pins and their functions +- [ ] Map memory regions and I/O addresses +- [ ] Identify power management features +- [ ] Document clock tree and PLL configurations +- [ ] Research thermal characteristics and throttling + +#### 1.1.2 GPU Analysis - Adreno 225 +- **Architecture**: Unified shader model 4.1 +- **Memory**: Shared with system RAM +- **API Support**: OpenGL ES 2.0, OpenVG 1.1 +- **Performance**: ~24 GFLOPS + +**Research Tasks:** +- [ ] Investigate open-source driver availability +- [ ] Document firmware requirements +- [ ] Map register space and memory regions +- [ ] Research reverse engineering efforts +- [ ] Identify alternative rendering paths (software, framebuffer) + +#### 1.1.3 Display System +- **Panel**: 3.5" IPS LCD, 720x720 resolution +- **Interface**: Likely MIPI DSI +- **Touch**: Capacitive overlay (if present) +- **Aspect Ratio**: 1:1 (square) + +**Research Tasks:** +- [ ] Identify display controller chip +- [ ] Document MIPI DSI configuration +- [ ] Map backlight control +- [ ] Research touch controller (if separate) +- [ ] Document color calibration data + +#### 1.1.4 Input Devices +- **Keyboard**: Physical QWERTY with backlight +- **Trackpad**: Optical or capacitive +- **Navigation**: Menu, Back, Call, End keys +- **Interface**: Likely I2C or SPI + +**Research Tasks:** +- [ ] Identify keyboard controller chip +- [ ] Document key matrix layout +- [ ] Map trackpad sensor type and interface +- [ ] Document LED backlight control +- [ ] Research haptic feedback system + +#### 1.1.5 Modem - Qualcomm MDM9615 +- **Technology**: LTE Cat 3, HSPA+, CDMA +- **Interface**: QMI over USB or HSIC +- **Firmware**: Proprietary, requires signed images + +**Research Tasks:** +- [ ] Document QMI interface specifications +- [ ] Research firmware extraction methods +- [ ] Identify AT command set support +- [ ] Document power management interface +- [ ] Research alternative modem solutions + +### 1.2 Firmware Extraction and Analysis + +#### 1.2.1 BB10 Firmware Extraction +**Tools Required:** +- Sachesi (BB10 firmware extractor) +- BlackBerry Link (official software) +- Autoloader tools +- Hex editors and binary analysis tools + +**Extraction Process:** +1. Download latest BB10 firmware for Q20 +2. Use Sachesi to extract individual partitions +3. Identify bootloader, kernel, and system partitions +4. Extract device tree and kernel configuration +5. Analyze proprietary drivers and firmware blobs + +**Analysis Tasks:** +- [ ] Reverse engineer boot sequence +- [ ] Document partition layout +- [ ] Extract device tree source (DTS) +- [ ] Identify kernel configuration +- [ ] Map proprietary driver dependencies + +#### 1.2.2 Bootloader Analysis +**Investigation Areas:** +- **Signature Verification**: Level of cryptographic enforcement +- **Fastboot Access**: Availability of fastboot mode +- **Recovery Mode**: Alternative boot paths +- **Unlock Possibility**: Bootloader unlock methods +- **Secure Boot**: Chain of trust analysis + +**Research Methods:** +- [ ] Attempt fastboot commands +- [ ] Analyze recovery partition +- [ ] Research JTAG/EDL access points +- [ ] Document signature verification process +- [ ] Identify potential bypass methods + +### 1.3 Hardware Access Investigation + +#### 1.3.1 Debug Interfaces +**Available Interfaces:** +- **USB**: Standard USB 2.0 interface +- **Serial**: UART over USB (if available) +- **JTAG**: Hardware debug interface +- **EDL**: Emergency Download Mode +- **QDL**: Qualcomm Download Mode + +**Investigation Tasks:** +- [ ] Test USB serial console access +- [ ] Identify JTAG pinout and access +- [ ] Research EDL mode entry +- [ ] Document QDL mode capabilities +- [ ] Test fastboot command availability + +#### 1.3.2 Development Environment +**Required Tools:** +- Cross-compilation toolchain (ARMv7) +- Device tree compiler +- Kernel build environment +- Root filesystem builder (Buildroot/Yocto) +- Flash tools and utilities + +**Setup Tasks:** +- [ ] Install ARM cross-compiler +- [ ] Set up kernel build environment +- [ ] Configure device tree tools +- [ ] Install flash utilities +- [ ] Set up development VM/container + +### 1.4 Driver Analysis + +#### 1.4.1 Open Source Driver Availability +**Kernel Drivers to Investigate:** +- **MSM DRM**: Display and graphics +- **MSM Audio**: Sound system +- **MSM Camera**: Camera interface +- **MSM USB**: USB controller +- **MSM I2C/SPI**: Communication buses +- **MSM GPIO**: General purpose I/O + +**Research Tasks:** +- [ ] Check mainline kernel support +- [ ] Research postmarketOS MSM8960 support +- [ ] Investigate LineageOS driver availability +- [ ] Document missing driver requirements +- [ ] Identify reverse engineering needs + +#### 1.4.2 Proprietary Driver Requirements +**Likely Proprietary Components:** +- **Modem Firmware**: MDM9615 baseband +- **GPU Firmware**: Adreno 225 microcode +- **Audio DSP**: Qualcomm audio processing +- **Camera ISP**: Image signal processor +- **Security Modules**: TrustZone components + +**Analysis Tasks:** +- [ ] Extract and analyze firmware blobs +- [ ] Document driver interfaces +- [ ] Research open alternatives +- [ ] Identify compatibility layers needed +- [ ] Document licensing restrictions + +## 📊 Deliverables + +### 1.5 Hardware Reference Sheet +**Documentation Requirements:** +- Complete hardware block diagram +- Pin assignments and functions +- Memory map and I/O addresses +- Clock configurations +- Power management states +- Interface specifications + +### 1.6 Bootloader Analysis Report +**Content Requirements:** +- Boot sequence documentation +- Signature verification details +- Available boot modes +- Unlock possibilities +- Security assessment +- Alternative boot methods + +### 1.7 Driver Requirements Matrix +**Matrix Categories:** +- **Available**: Open source drivers ready +- **Portable**: Drivers from similar hardware +- **Missing**: No driver available +- **Proprietary**: Requires binary blobs +- **Priority**: Critical for basic functionality + +### 1.8 Go/No-Go Decision Criteria +**Technical Criteria:** +- Bootloader unlock possibility > 70% +- Critical hardware support > 80% +- Development toolchain availability +- Community interest and resources +- Legal/ethical considerations + +**Risk Assessment:** +- High Risk: Bootloader completely locked +- Medium Risk: Limited hardware support +- Low Risk: Most components supported + +## 🔍 Research Resources + +### 1.9 Information Sources +- **Official Documentation**: BlackBerry developer resources +- **Community Forums**: CrackBerry, XDA Developers +- **Reverse Engineering**: GitHub projects, research papers +- **Hardware Datasheets**: Qualcomm, display manufacturers +- **Kernel Sources**: Linux mainline, vendor trees + +### 1.10 Tools and Software +- **Firmware Analysis**: binwalk, hexdump, strings +- **Hardware Debug**: OpenOCD, JTAG tools +- **Binary Analysis**: IDA Pro, Ghidra, radare2 +- **Development**: QEMU, cross-compilers +- **Documentation**: Doxygen, Sphinx + +## ⏱️ Timeline + +**Week 1-2**: Hardware specification collection +**Week 3-4**: Firmware extraction and analysis +**Week 5-6**: Bootloader investigation +**Week 7-8**: Driver analysis and feasibility assessment + +**Total Duration**: 8 weeks (2 months) + +## 🎯 Success Criteria + +Phase 1 is successful when: +1. Complete hardware reference is documented +2. Bootloader capabilities are fully understood +3. Driver requirements are clearly identified +4. Technical feasibility is determined +5. Go/No-Go decision can be made with confidence + +## 🚨 Risk Mitigation + +**High-Risk Scenarios:** +- Bootloader completely locked → Research alternative boot methods +- Critical hardware unsupported → Identify workarounds or alternatives +- Legal restrictions → Consult with legal experts +- Resource limitations → Scale back scope or seek community help \ No newline at end of file diff --git a/docs/PHASE_2_BOOTSTRAPPING.md b/docs/PHASE_2_BOOTSTRAPPING.md new file mode 100644 index 0000000..e1e8a5d --- /dev/null +++ b/docs/PHASE_2_BOOTSTRAPPING.md @@ -0,0 +1,401 @@ +# Phase 2: Bootstrapping a Minimal Linux System + +## 🎯 Objectives +Achieve a working Linux shell booted on the BlackBerry Classic (Q20) with basic hardware access and development environment established. + +## 📋 Detailed Tasks + +### 2.1 Kernel Selection and Configuration + +#### 2.1.1 Kernel Source Selection +**Options to Evaluate:** +1. **Mainline Linux**: Latest stable kernel (6.x) +2. **postmarketOS**: Community-maintained mobile Linux +3. **LineageOS**: Android-based kernel tree +4. **Qualcomm CAF**: Code Aurora Forum kernel + +**Selection Criteria:** +- MSM8960 support level +- Community maintenance +- Driver availability +- Security updates +- Documentation quality + +**Evaluation Tasks:** +- [ ] Test mainline kernel MSM8960 support +- [ ] Compare postmarketOS vs LineageOS trees +- [ ] Assess Qualcomm CAF maintenance status +- [ ] Document missing features in each option +- [ ] Choose optimal kernel source + +#### 2.1.2 Kernel Configuration +**Essential Configurations:** +```bash +# Architecture +CONFIG_ARM=y +CONFIG_CPU_32v7=y +CONFIG_CPU_HAS_ASID=y + +# MSM8960 specific +CONFIG_ARCH_MSM8960=y +CONFIG_MSM_SMD=y +CONFIG_MSM_SMD_PKG3=y + +# Device tree +CONFIG_OF=y +CONFIG_DTC=y + +# Essential subsystems +CONFIG_SERIAL_MSM=y +CONFIG_SERIAL_MSM_CONSOLE=y +CONFIG_USB_SUPPORT=y +CONFIG_USB_MSM_OTG=y +``` + +**Configuration Tasks:** +- [ ] Create base kernel configuration +- [ ] Enable MSM8960-specific drivers +- [ ] Configure device tree support +- [ ] Enable essential subsystems +- [ ] Optimize for size and performance + +#### 2.1.3 Device Tree Development +**Device Tree Structure:** +```dts +/ { + model = "BlackBerry Classic Q20"; + compatible = "blackberry,q20", "qcom,msm8960"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x80000000>; // 2GB + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + soc { + serial@16440000 { + compatible = "qcom,msm-uartdm"; + reg = <0x16440000 0x1000>; + interrupts = <0 154 0>; + clocks = <&gcc 108>, <&gcc 109>; + clock-names = "core", "iface"; + }; + }; +}; +``` + +**Development Tasks:** +- [ ] Create base device tree for Q20 +- [ ] Add MSM8960 SoC nodes +- [ ] Configure memory and clocks +- [ ] Add essential peripherals +- [ ] Test device tree compilation + +### 2.2 Root Filesystem Creation + +#### 2.2.1 Build System Selection +**Options:** +1. **Buildroot**: Lightweight, single-purpose +2. **Yocto**: Full-featured, complex +3. **Debian**: Standard distribution +4. **Alpine**: Minimal, security-focused + +**Selection Criteria:** +- Build time requirements +- Package availability +- Customization flexibility +- Maintenance overhead +- Community support + +**Evaluation Tasks:** +- [ ] Compare build times for each system +- [ ] Assess package availability +- [ ] Test customization capabilities +- [ ] Evaluate maintenance requirements +- [ ] Choose optimal build system + +#### 2.2.2 Minimal Root Filesystem +**Essential Components:** +```bash +# Core system +/bin/busybox +/bin/sh +/bin/init + +# Development tools +/bin/dropbear # SSH server +/bin/strace # Debugging +/bin/gdb # Debugger + +# System utilities +/bin/mount +/bin/umount +/bin/reboot +/bin/poweroff + +# Network tools +/bin/ifconfig +/bin/route +/bin/ping +``` + +**Build Tasks:** +- [ ] Configure build system for ARMv7 +- [ ] Select essential packages +- [ ] Configure init system (systemd/OpenRC) +- [ ] Set up development tools +- [ ] Create minimal bootable image + +#### 2.2.3 Init System Configuration +**Options:** +1. **systemd**: Full-featured, complex +2. **OpenRC**: Lightweight, simple +3. **BusyBox init**: Minimal, basic +4. **Custom init**: Tailored for device + +**Configuration Tasks:** +- [ ] Choose appropriate init system +- [ ] Configure boot sequence +- [ ] Set up service management +- [ ] Configure logging +- [ ] Test boot process + +### 2.3 Boot Method Development + +#### 2.3.1 Bootloader Integration +**Boot Methods to Investigate:** +1. **Fastboot**: Standard Android boot method +2. **kexec**: Kernel-to-kernel boot +3. **EDL Mode**: Emergency Download Mode +4. **Recovery Mode**: Alternative boot path +5. **Custom Bootloader**: Modified boot sequence + +**Development Tasks:** +- [ ] Test fastboot command availability +- [ ] Develop kexec boot method +- [ ] Research EDL mode entry +- [ ] Modify recovery boot sequence +- [ ] Create custom bootloader if needed + +#### 2.3.2 Boot Image Creation +**Android Boot Image Format:** +```bash +# Boot image structure ++------------------+ +| Boot header | ++------------------+ +| Kernel | ++------------------+ +| Ramdisk | ++------------------+ +| Device tree | ++------------------+ +``` + +**Creation Process:** +- [ ] Compile kernel image +- [ ] Create initramfs +- [ ] Build device tree blob +- [ ] Package boot image +- [ ] Sign image if required + +#### 2.3.3 Boot Sequence Development +**Boot Process:** +1. **Bootloader**: Load and verify boot image +2. **Kernel**: Initialize hardware and mount rootfs +3. **Init**: Start system services +4. **Shell**: Provide user interface + +**Development Tasks:** +- [ ] Configure bootloader parameters +- [ ] Set up kernel command line +- [ ] Configure init system +- [ ] Test complete boot sequence +- [ ] Debug boot issues + +### 2.4 Hardware Access Development + +#### 2.4.1 Serial Console Access +**UART Configuration:** +```bash +# Kernel command line +console=ttyMSM0,115200n8 + +# Device tree node +serial@16440000 { + compatible = "qcom,msm-uartdm"; + reg = <0x16440000 0x1000>; + interrupts = <0 154 0>; + clocks = <&gcc 108>, <&gcc 109>; + clock-names = "core", "iface"; +}; +``` + +**Setup Tasks:** +- [ ] Configure UART driver +- [ ] Set up console output +- [ ] Test serial communication +- [ ] Configure USB serial bridge +- [ ] Document connection method + +#### 2.4.2 USB Access Development +**USB Configuration:** +```bash +# USB OTG support +CONFIG_USB_MSM_OTG=y +CONFIG_USB_GADGET=y +CONFIG_USB_G_SERIAL=y + +# USB host support +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_OHCI_HCD=y +``` + +**Development Tasks:** +- [ ] Configure USB OTG driver +- [ ] Set up USB gadget mode +- [ ] Enable USB serial bridge +- [ ] Test USB connectivity +- [ ] Configure USB networking + +#### 2.4.3 Network Access +**Network Configuration:** +```bash +# USB networking +CONFIG_USB_RNDIS=y +CONFIG_USB_CDC_ETHER=y + +# Wi-Fi support (if available) +CONFIG_WLAN=y +CONFIG_ATH6KL=y +``` + +**Setup Tasks:** +- [ ] Configure USB networking +- [ ] Set up IP addressing +- [ ] Test network connectivity +- [ ] Configure SSH access +- [ ] Document network setup + +### 2.5 Development Environment + +#### 2.5.1 Cross-Compilation Setup +**Toolchain Requirements:** +```bash +# ARMv7 cross-compiler +arm-linux-gnueabihf-gcc +arm-linux-gnueabihf-g++ +arm-linux-gnueabihf-ld + +# Build tools +make +cmake +autotools + +# Device tree tools +dtc +dtc-utils +``` + +**Setup Tasks:** +- [ ] Install ARM cross-compiler +- [ ] Configure build environment +- [ ] Set up kernel build system +- [ ] Configure rootfs builder +- [ ] Test compilation process + +#### 2.5.2 Debug Environment +**Debug Tools:** +```bash +# Kernel debugging +CONFIG_KGDB=y +CONFIG_KGDB_SERIAL_CONSOLE=y + +# User space debugging +strace +gdb +valgrind + +# System monitoring +top +htop +iotop +``` + +**Setup Tasks:** +- [ ] Configure kernel debugging +- [ ] Set up GDB server +- [ ] Install debug tools +- [ ] Configure logging +- [ ] Test debug capabilities + +#### 2.5.3 Testing Framework +**Testing Components:** +- **Unit Tests**: Individual component testing +- **Integration Tests**: System-level testing +- **Hardware Tests**: Peripheral functionality +- **Performance Tests**: System performance +- **Stress Tests**: System stability + +**Framework Setup:** +- [ ] Set up automated testing +- [ ] Configure test environment +- [ ] Create test scripts +- [ ] Set up continuous integration +- [ ] Document testing procedures + +## 📊 Deliverables + +### 2.6 Working Linux Shell +**Requirements:** +- Bootable Linux kernel +- Functional root filesystem +- Serial console access +- Basic command line interface +- Development tools available + +### 2.7 Hardware Access Log +**Documentation:** +- Working vs non-working peripherals +- Driver status for each component +- Access methods for each interface +- Performance characteristics +- Known issues and limitations + +### 2.8 Development Environment +**Components:** +- Cross-compilation toolchain +- Kernel build system +- Root filesystem builder +- Debug tools and utilities +- Testing framework + +## ⏱️ Timeline + +**Week 1-2**: Kernel selection and configuration +**Week 3-4**: Root filesystem creation +**Week 5-6**: Boot method development +**Week 7-8**: Hardware access and development environment + +**Total Duration**: 8 weeks (2 months) + +## 🎯 Success Criteria + +Phase 2 is successful when: +1. Linux kernel boots successfully on device +2. Serial console provides shell access +3. Basic hardware peripherals are accessible +4. Development environment is functional +5. Boot process is reliable and documented + +## 🚨 Risk Mitigation + +**High-Risk Scenarios:** +- Bootloader completely locked → Research alternative boot methods +- Kernel won't boot → Debug hardware initialization +- No serial access → Develop alternative debug methods +- Build system issues → Simplify or use alternative tools +- Hardware incompatibility → Identify and work around issues \ No newline at end of file diff --git a/docs/PHASE_3_HARDWARE.md b/docs/PHASE_3_HARDWARE.md new file mode 100644 index 0000000..7eaccfc --- /dev/null +++ b/docs/PHASE_3_HARDWARE.md @@ -0,0 +1,697 @@ +# Phase 3: Hardware Support Layer Development + +## 🎯 Objectives +Develop comprehensive hardware support for all BlackBerry Classic (Q20) peripherals including keyboard, display, audio, and connectivity components. + +## 📋 Detailed Tasks + +### 3.1 Device Tree Development + +#### 3.1.1 Complete Device Tree for Q20 +**Full Device Tree Structure:** +```dts +/ { + model = "BlackBerry Classic Q20"; + compatible = "blackberry,q20", "qcom,msm8960"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x80000000>; // 2GB + }; + + chosen { + stdout-path = "serial0:115200n8"; + bootargs = "console=ttyMSM0,115200n8 root=/dev/mmcblk0p2 rw"; + }; + + soc { + // Serial console + serial@16440000 { + compatible = "qcom,msm-uartdm"; + reg = <0x16440000 0x1000>; + interrupts = <0 154 0>; + clocks = <&gcc 108>, <&gcc 109>; + clock-names = "core", "iface"; + status = "okay"; + }; + + // Display controller + mdp@5100000 { + compatible = "qcom,mdp5"; + reg = <0x05100000 0x90000>; + reg-names = "mdp_phys"; + interrupts = <0 75 0>; + clocks = <&gcc 20>, <&gcc 21>; + clock-names = "iface", "core"; + status = "okay"; + }; + + // Audio system + sound { + compatible = "qcom,msm8960-snd-card"; + qcom,model = "blackberry-q20-snd-card"; + qcom,audio-routing = "RX_BIAS", "MCLK", + "LDO_H", "MCLK"; + qcom,cdc-mclk-gpios = <&pm8941_gpios 15 0>; + }; + + // Keyboard controller + keyboard@78 { + compatible = "blackberry,q20-keyboard"; + reg = <0x78>; + interrupts = <0 123 0>; + gpio-controller; + #gpio-cells = <2>; + status = "okay"; + }; + + // Trackpad + trackpad@5d { + compatible = "blackberry,q20-trackpad"; + reg = <0x5d>; + interrupts = <0 124 0>; + status = "okay"; + }; + + // Battery management + battery { + compatible = "blackberry,q20-battery"; + voltage-min-design-microvolt = <3200000>; + voltage-max-design-microvolt = <4200000>; + energy-full-design-microwatt-hours = <9500000>; + charge-full-design-microamp-hours = <2515000>; + }; + + // Charger + charger { + compatible = "blackberry,q20-charger"; + qcom,fast-charge-current = <1000000>; + qcom,fast-charge-voltage = <4200000>; + }; + }; +}; +``` + +**Development Tasks:** +- [ ] Create complete device tree source +- [ ] Add all peripheral nodes +- [ ] Configure clocks and interrupts +- [ ] Set up GPIO assignments +- [ ] Test device tree compilation + +#### 3.1.2 Peripheral-Specific Device Trees +**Display Device Tree:** +```dts +// Display panel +panel@0 { + compatible = "blackberry,q20-panel"; + reg = <0>; + + // Panel specifications + width-mm = <89>; + height-mm = <89>; + + // Display timing + display-timings { + native-mode = <&timing0>; + + timing0: timing0 { + clock-frequency = <72000000>; + hactive = <720>; + vactive = <720>; + hfront-porch = <10>; + hsync-len = <10>; + hback-porch = <10>; + vfront-porch = <10>; + vsync-len = <10>; + vback-porch = <10>; + }; + }; + + // Backlight + backlight { + compatible = "pwm-backlight"; + pwms = <&pwm 0 1000000>; + brightness-levels = <0 1 2 3 4 5 6 7 8 9 10>; + default-brightness-level = <10>; + }; +}; +``` + +**Audio Device Tree:** +```dts +// Audio codec +codec@34 { + compatible = "blackberry,q20-audio-codec"; + reg = <0x34>; + + // Audio routing + audio-routing = "Speaker", "SPK_OUT", + "Headphone", "HP_OUT", + "Microphone", "MIC_IN"; + + // Volume controls + volume-controls { + speaker-volume = <0 100>; + headphone-volume = <0 100>; + microphone-gain = <0 30>; + }; +}; +``` + +### 3.2 Input Device Drivers + +#### 3.2.1 Keyboard Driver Development +**Keyboard Hardware Analysis:** +- **Controller**: Likely I2C-based (address 0x78) +- **Matrix**: 35+ keys in matrix configuration +- **Backlight**: LED backlight with PWM control +- **Interface**: I2C with interrupt support + +**Driver Implementation:** +```c +// Keyboard driver structure +struct q20_keyboard { + struct i2c_client *client; + struct input_dev *input; + struct work_struct work; + struct timer_list timer; + spinlock_t lock; + + // Key state + u8 key_states[KEY_MATRIX_SIZE]; + u8 prev_states[KEY_MATRIX_SIZE]; + + // Backlight + struct pwm_device *backlight_pwm; + u8 backlight_level; + + // Configuration + struct q20_keyboard_platform_data *pdata; +}; + +// Key mapping +static const unsigned short q20_keymap[] = { + KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_U, KEY_I, KEY_O, KEY_P, + KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_J, KEY_K, KEY_L, + KEY_Z, KEY_X, KEY_C, KEY_V, KEY_B, KEY_N, KEY_M, + KEY_ENTER, KEY_BACKSPACE, KEY_SPACE, KEY_LEFTSHIFT, + KEY_MENU, KEY_BACK, KEY_CALL, KEY_END +}; + +// Driver probe function +static int q20_keyboard_probe(struct i2c_client *client) +{ + struct q20_keyboard *keyboard; + struct input_dev *input; + int error; + + // Allocate structures + keyboard = devm_kzalloc(&client->dev, sizeof(*keyboard), GFP_KERNEL); + input = devm_input_allocate_device(&client->dev); + + // Initialize keyboard + keyboard->client = client; + keyboard->input = input; + + // Set up input device + input->name = "BlackBerry Q20 Keyboard"; + input->phys = "q20-keyboard/input0"; + input->id.bustype = BUS_I2C; + input->id.vendor = 0x0001; + input->id.product = 0x0001; + input->id.version = 0x0100; + + // Set keycodes + input->keycode = q20_keymap; + input->keycodesize = sizeof(q20_keymap[0]); + input->keycodemax = ARRAY_SIZE(q20_keymap); + + // Set up event types + __set_bit(EV_KEY, input->evbit); + __set_bit(EV_REP, input->evbit); + + // Register input device + error = input_register_device(input); + if (error) + return error; + + // Set up interrupt handler + error = devm_request_threaded_irq(&client->dev, client->irq, + NULL, q20_keyboard_irq, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + "q20-keyboard", keyboard); + + return 0; +} +``` + +**Development Tasks:** +- [ ] Analyze keyboard hardware interface +- [ ] Implement I2C communication +- [ ] Create key matrix scanning +- [ ] Add backlight control +- [ ] Implement interrupt handling + +#### 3.2.2 Trackpad Driver Development +**Trackpad Hardware Analysis:** +- **Sensor**: Optical or capacitive sensor +- **Interface**: I2C or SPI communication +- **Resolution**: High precision for trackpad use +- **Buttons**: Integrated left/right click + +**Driver Implementation:** +```c +// Trackpad driver structure +struct q20_trackpad { + struct i2c_client *client; + struct input_dev *input; + struct work_struct work; + + // Trackpad state + int x, y; + int prev_x, prev_y; + u8 button_state; + u8 prev_button_state; + + // Configuration + int sensitivity; + int acceleration; + bool relative_mode; +}; + +// Trackpad event handling +static void q20_trackpad_work(struct work_struct *work) +{ + struct q20_trackpad *trackpad = container_of(work, struct q20_trackpad, work); + struct input_dev *input = trackpad->input; + int dx, dy; + + // Read trackpad data + q20_trackpad_read_data(trackpad); + + // Calculate movement + dx = trackpad->x - trackpad->prev_x; + dy = trackpad->y - trackpad->prev_y; + + // Apply sensitivity and acceleration + dx = dx * trackpad->sensitivity / 100; + dy = dy * trackpad->sensitivity / 100; + + // Report movement + if (dx != 0 || dy != 0) { + input_report_rel(input, REL_X, dx); + input_report_rel(input, REL_Y, dy); + } + + // Report button state + if (trackpad->button_state != trackpad->prev_button_state) { + input_report_key(input, BTN_LEFT, trackpad->button_state & 0x01); + input_report_key(input, BTN_RIGHT, trackpad->button_state & 0x02); + } + + input_sync(input); + + // Update previous state + trackpad->prev_x = trackpad->x; + trackpad->prev_y = trackpad->y; + trackpad->prev_button_state = trackpad->button_state; +} +``` + +**Development Tasks:** +- [ ] Identify trackpad sensor type +- [ ] Implement sensor communication +- [ ] Create movement calculation +- [ ] Add button support +- [ ] Configure sensitivity settings + +### 3.3 Display and Graphics + +#### 3.3.1 Display Driver Development +**Display Hardware Analysis:** +- **Panel**: 3.5" IPS LCD, 720x720 resolution +- **Interface**: MIPI DSI +- **Controller**: Qualcomm MDP5 +- **Backlight**: PWM-controlled LED + +**Driver Implementation:** +```c +// Display driver structure +struct q20_display { + struct drm_device *drm; + struct drm_connector connector; + struct drm_encoder encoder; + struct drm_crtc crtc; + struct drm_plane primary_plane; + + // Hardware resources + void __iomem *regs; + struct clk *pixel_clk; + struct clk *byte_clk; + struct regulator *vdd; + + // Panel configuration + struct drm_display_mode *mode; + u32 width, height; + u32 refresh_rate; +}; + +// Display mode configuration +static const struct drm_display_mode q20_mode = { + DRM_MODE("720x720", DRM_MODE_TYPE_DRIVER, 72000000, 720, 730, 740, 750, 0, + 720, 730, 740, 750, 0, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) +}; + +// Connector functions +static int q20_connector_get_modes(struct drm_connector *connector) +{ + struct drm_display_mode *mode; + + mode = drm_mode_duplicate(connector->dev, &q20_mode); + if (!mode) + return 0; + + drm_mode_probed_add(connector, mode); + return 1; +} + +static const struct drm_connector_helper_funcs q20_connector_helper_funcs = { + .get_modes = q20_connector_get_modes, +}; + +static const struct drm_connector_funcs q20_connector_funcs = { + .reset = drm_atomic_helper_connector_reset, + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = drm_connector_cleanup, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; +``` + +**Development Tasks:** +- [ ] Configure MIPI DSI interface +- [ ] Set up MDP5 display controller +- [ ] Implement DRM driver +- [ ] Add backlight control +- [ ] Test display functionality + +#### 3.3.2 Graphics Acceleration +**GPU Support Options:** +1. **Software Rendering**: CPU-based rendering +2. **Framebuffer**: Direct framebuffer access +3. **Open Source GPU Driver**: Reverse engineered Adreno driver +4. **Proprietary Blob**: Qualcomm binary driver + +**Implementation Strategy:** +```c +// Framebuffer driver +struct q20_fb_info { + struct fb_info *fb; + void __iomem *fb_base; + dma_addr_t fb_dma; + size_t fb_size; + + // Display parameters + u32 width, height; + u32 bpp; + u32 stride; + + // Hardware resources + struct clk *pixel_clk; + struct regulator *vdd; +}; + +// Framebuffer operations +static int q20_fb_setcolreg(unsigned regno, unsigned red, unsigned green, + unsigned blue, unsigned transp, struct fb_info *info) +{ + struct q20_fb_info *q20_fb = info->par; + u32 color; + + if (regno >= 256) + return -EINVAL; + + color = ((red & 0xff) << 16) | ((green & 0xff) << 8) | (blue & 0xff); + q20_fb->fb_base[regno] = color; + + return 0; +} + +static int q20_fb_blank(int blank, struct fb_info *info) +{ + struct q20_fb_info *q20_fb = info->par; + + switch (blank) { + case FB_BLANK_UNBLANK: + clk_prepare_enable(q20_fb->pixel_clk); + regulator_enable(q20_fb->vdd); + break; + case FB_BLANK_POWERDOWN: + regulator_disable(q20_fb->vdd); + clk_disable_unprepare(q20_fb->pixel_clk); + break; + } + + return 0; +} +``` + +### 3.4 Audio System + +#### 3.4.1 Audio Driver Development +**Audio Hardware Analysis:** +- **Codec**: Qualcomm WCD9310 or similar +- **Interface**: I2S/SLIMbus +- **Speakers**: Mono speaker output +- **Headphones**: 3.5mm jack +- **Microphone**: Built-in microphone + +**Driver Implementation:** +```c +// Audio driver structure +struct q20_audio { + struct snd_soc_card *card; + struct snd_soc_codec *codec; + struct snd_soc_dai *dai; + + // Hardware resources + struct clk *mclk; + struct regulator *vdd; + struct gpio_desc *reset_gpio; + + // Audio configuration + int sample_rate; + int channels; + int format; +}; + +// Audio routing +static const struct snd_kcontrol_new q20_audio_controls[] = { + SOC_DAPM_PIN_SWITCH("Speaker"), + SOC_DAPM_PIN_SWITCH("Headphone"), + SOC_DAPM_PIN_SWITCH("Microphone"), +}; + +static const struct snd_soc_dapm_widget q20_audio_widgets[] = { + SND_SOC_DAPM_SPK("Speaker", NULL), + SND_SOC_DAPM_HP("Headphone", NULL), + SND_SOC_DAPM_MIC("Microphone", NULL), +}; + +static const struct snd_soc_dapm_route q20_audio_routes[] = { + {"Speaker", NULL, "SPK_OUT"}, + {"Headphone", NULL, "HP_OUT"}, + {"MIC_IN", NULL, "Microphone"}, +}; + +// Audio operations +static int q20_audio_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *dai = rtd->codec_dai; + int ret; + + ret = snd_soc_dai_set_fmt(dai, SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_sysclk(dai, 0, 12288000, SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + return 0; +} +``` + +**Development Tasks:** +- [ ] Configure audio codec +- [ ] Set up I2S/SLIMbus interface +- [ ] Implement ALSA driver +- [ ] Add volume controls +- [ ] Test audio functionality + +### 3.5 Power Management + +#### 3.5.1 Battery Management +**Battery Hardware Analysis:** +- **Capacity**: 2515mAh +- **Chemistry**: Lithium-ion +- **Interface**: I2C communication +- **Charging**: USB and external charger + +**Driver Implementation:** +```c +// Battery driver structure +struct q20_battery { + struct power_supply *psy; + struct i2c_client *client; + struct work_struct work; + struct timer_list timer; + + // Battery state + int voltage; + int current; + int capacity; + int temperature; + int status; + + // Configuration + int full_charge_capacity; + int design_capacity; + int voltage_min; + int voltage_max; +}; + +// Battery operations +static int q20_battery_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct q20_battery *battery = power_supply_get_drvdata(psy); + + switch (psp) { + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = battery->voltage * 1000; // Convert to microvolts + break; + case POWER_SUPPLY_PROP_CURRENT_NOW: + val->intval = battery->current * 1000; // Convert to microamps + break; + case POWER_SUPPLY_PROP_CAPACITY: + val->intval = battery->capacity; + break; + case POWER_SUPPLY_PROP_TEMP: + val->intval = battery->temperature * 10; // Convert to deci-celsius + break; + case POWER_SUPPLY_PROP_STATUS: + val->intval = battery->status; + break; + default: + return -EINVAL; + } + + return 0; +} +``` + +#### 3.5.2 Charger Management +**Charger Hardware Analysis:** +- **Type**: USB and external charger +- **Interface**: I2C communication +- **Protection**: Over-voltage, over-current +- **Indication**: LED indicators + +**Development Tasks:** +- [ ] Implement battery monitoring +- [ ] Add charger detection +- [ ] Configure power management +- [ ] Set up thermal protection +- [ ] Test charging functionality + +### 3.6 Connectivity + +#### 3.6.1 Wi-Fi Driver +**Wi-Fi Hardware Analysis:** +- **Chipset**: Likely Qualcomm/Atheros +- **Interface**: SDIO or PCIe +- **Firmware**: Proprietary binary blob +- **Standards**: 802.11n + +**Development Tasks:** +- [ ] Identify Wi-Fi chipset +- [ ] Extract firmware blobs +- [ ] Implement SDIO/PCIe driver +- [ ] Configure network interface +- [ ] Test Wi-Fi functionality + +#### 3.6.2 Bluetooth Driver +**Bluetooth Hardware Analysis:** +- **Chipset**: Qualcomm WCN3660 or similar +- **Interface**: UART or USB +- **Firmware**: Proprietary binary blob +- **Standards**: Bluetooth 4.0 + +**Development Tasks:** +- [ ] Identify Bluetooth chipset +- [ ] Extract firmware blobs +- [ ] Implement UART/USB driver +- [ ] Configure Bluetooth stack +- [ ] Test Bluetooth functionality + +## 📊 Deliverables + +### 3.7 Complete Hardware Support +**Requirements:** +- All peripherals functional +- Device drivers loaded +- Hardware interfaces working +- Performance optimized +- Power management active + +### 3.8 Driver Documentation +**Content:** +- Driver architecture overview +- Hardware interface specifications +- Configuration parameters +- Troubleshooting guide +- Performance characteristics + +### 3.9 Testing Framework +**Components:** +- Hardware test suite +- Driver validation tools +- Performance benchmarks +- Stress testing utilities +- Automated test scripts + +## ⏱️ Timeline + +**Week 1-2**: Device tree development +**Week 3-4**: Input device drivers +**Week 5-6**: Display and graphics +**Week 7-8**: Audio system +**Week 9-10**: Power management +**Week 11-12**: Connectivity drivers + +**Total Duration**: 12 weeks (3 months) + +## 🎯 Success Criteria + +Phase 3 is successful when: +1. All hardware peripherals are functional +2. Device drivers are stable and optimized +3. Performance meets requirements +4. Power management is efficient +5. Hardware interfaces are documented + +## 🚨 Risk Mitigation + +**High-Risk Scenarios:** +- Proprietary firmware required → Extract and analyze blobs +- Hardware documentation missing → Reverse engineer interfaces +- Driver compatibility issues → Develop compatibility layers +- Performance problems → Optimize and profile drivers +- Power consumption issues → Implement power management \ No newline at end of file diff --git a/docs/PHASE_4_UI.md b/docs/PHASE_4_UI.md new file mode 100644 index 0000000..1795580 --- /dev/null +++ b/docs/PHASE_4_UI.md @@ -0,0 +1,722 @@ +# Phase 4: User Interface Layer Development + +## 🎯 Objectives +Create a keyboard-centric, trackpad-optimized graphical user interface that provides an intuitive and efficient user experience for the BlackBerry Classic (Q20). + +## 📋 Detailed Tasks + +### 4.1 Display Server Architecture + +#### 4.1.1 Wayland Compositor Selection +**Options to Evaluate:** +1. **Sway**: i3-compatible Wayland compositor +2. **Weston**: Reference Wayland compositor +3. **Custom Compositor**: Tailored for Q20 +4. **Hyprland**: Modern tiling compositor + +**Selection Criteria:** +- Keyboard navigation support +- Trackpad optimization +- Resource efficiency +- Customization flexibility +- Community maintenance + +**Evaluation Tasks:** +- [ ] Test keyboard shortcuts in each compositor +- [ ] Evaluate trackpad gesture support +- [ ] Measure memory and CPU usage +- [ ] Assess customization capabilities +- [ ] Choose optimal compositor + +#### 4.1.2 Custom Compositor Development +**Architecture Design:** +```c +// Compositor structure +struct q20_compositor { + struct wl_display *display; + struct wl_event_loop *event_loop; + struct wl_listener display_destroy; + + // Output management + struct wl_list outputs; + struct q20_output *primary_output; + + // Input handling + struct wl_list seats; + struct q20_seat *primary_seat; + + // Window management + struct wl_list views; + struct q20_view *focused_view; + + // Keyboard shortcuts + struct wl_list shortcuts; + struct q20_shortcut *active_shortcut; +}; + +// Output management +struct q20_output { + struct wl_list link; + struct wl_output *wl_output; + struct q20_compositor *compositor; + + // Display properties + int width, height; + int refresh_rate; + int scale; + + // Rendering + struct wl_list views; + struct q20_view *fullscreen_view; +}; + +// Input handling +struct q20_seat { + struct wl_list link; + struct wl_seat *wl_seat; + struct q20_compositor *compositor; + + // Input devices + struct wl_list keyboards; + struct wl_list pointers; + struct wl_list touch; + + // Focus management + struct q20_view *focused_view; + struct wl_listener view_destroy; +}; +``` + +**Development Tasks:** +- [ ] Design compositor architecture +- [ ] Implement output management +- [ ] Create input handling system +- [ ] Add window management +- [ ] Implement keyboard shortcuts + +### 4.2 Application Framework + +#### 4.2.1 UI Framework Selection +**Options:** +1. **Qt 6**: Modern, feature-rich framework +2. **GTK 4**: GNOME-based framework +3. **EFL**: Enlightenment Foundation Libraries +4. **Custom Framework**: Tailored for Q20 + +**Selection Criteria:** +- Wayland support +- Keyboard navigation +- Resource efficiency +- Development productivity +- Community support + +**Qt 6 Implementation:** +```cpp +// Main application class +class Q20Application : public QApplication +{ + Q_OBJECT + +public: + Q20Application(int &argc, char **argv); + ~Q20Application(); + + // Keyboard shortcuts + void registerShortcut(const QString &key, const QString &action); + void handleShortcut(const QString &key); + + // Window management + void showHomeScreen(); + void showAppLauncher(); + void showSettings(); + +private: + // UI components + Q20HomeScreen *homeScreen; + Q20AppLauncher *appLauncher; + Q20Settings *settings; + + // Keyboard handling + QHash shortcuts; + QShortcut *shortcutHandler; +}; + +// Home screen implementation +class Q20HomeScreen : public QWidget +{ + Q_OBJECT + +public: + Q20HomeScreen(QWidget *parent = nullptr); + +public slots: + void showNotifications(); + void showQuickSettings(); + void launchApp(const QString &appName); + +private: + // UI elements + QVBoxLayout *mainLayout; + QHBoxLayout *topBar; + QHBoxLayout *bottomBar; + + // Widgets + QLabel *timeLabel; + QLabel *batteryLabel; + QLabel *signalLabel; + QPushButton *menuButton; + QPushButton *backButton; + QPushButton *callButton; + QPushButton *endButton; + + // App shortcuts + QList appButtons; + +private slots: + void updateTime(); + void updateBattery(); + void updateSignal(); + void handleMenuClick(); + void handleBackClick(); + void handleCallClick(); + void handleEndClick(); +}; +``` + +#### 4.2.2 Application Launcher +**Launcher Design:** +```cpp +// App launcher class +class Q20AppLauncher : public QWidget +{ + Q_OBJECT + +public: + Q20AppLauncher(QWidget *parent = nullptr); + +public slots: + void showAllApps(); + void showFavorites(); + void searchApps(const QString &query); + void launchApp(const QString &appName); + +private: + // UI layout + QVBoxLayout *mainLayout; + QHBoxLayout *searchBar; + QScrollArea *appGrid; + QWidget *appContainer; + QGridLayout *appGridLayout; + + // App management + QList installedApps; + QList favoriteApps; + + // Search functionality + QLineEdit *searchInput; + QList searchResults; + +private slots: + void populateAppGrid(); + void filterApps(const QString &query); + void handleAppClick(const QString &appName); + void toggleFavorite(const QString &appName); +}; + +// App information structure +struct Q20AppInfo { + QString name; + QString displayName; + QString description; + QString iconPath; + QString executable; + QStringList categories; + bool isFavorite; + bool isSystem; +}; +``` + +### 4.3 Core Applications + +#### 4.3.1 Phone Dialer +**Dialer Implementation:** +```cpp +// Phone dialer class +class Q20Dialer : public QWidget +{ + Q_OBJECT + +public: + Q20Dialer(QWidget *parent = nullptr); + +public slots: + void dialNumber(const QString &number); + void answerCall(); + void endCall(); + void muteCall(); + void speakerToggle(); + void showContacts(); + void showCallHistory(); + +private: + // UI components + QVBoxLayout *mainLayout; + QHBoxLayout *numberDisplay; + QGridLayout *keypadLayout; + QHBoxLayout *callControls; + + // Display + QLineEdit *numberInput; + QLabel *callerName; + QLabel *callDuration; + + // Keypad + QList numberButtons; + QPushButton *starButton; + QPushButton *hashButton; + QPushButton *deleteButton; + + // Call controls + QPushButton *callButton; + QPushButton *endButton; + QPushButton *muteButton; + QPushButton *speakerButton; + QPushButton *contactsButton; + QPushButton *historyButton; + + // Call state + bool inCall; + QString currentNumber; + QTimer *callTimer; + +private slots: + void handleNumberClick(const QString &number); + void handleDeleteClick(); + void handleCallClick(); + void handleEndClick(); + void updateCallDuration(); + void handleIncomingCall(const QString &number); +}; +``` + +#### 4.3.2 SMS Application +**SMS Implementation:** +```cpp +// SMS application class +class Q20SMS : public QWidget +{ + Q_OBJECT + +public: + Q20SMS(QWidget *parent = nullptr); + +public slots: + void sendMessage(const QString &number, const QString &message); + void receiveMessage(const QString &number, const QString &message); + void showConversation(const QString &number); + void showAllConversations(); + void deleteConversation(const QString &number); + +private: + // UI layout + QVBoxLayout *mainLayout; + QHBoxLayout *topBar; + QSplitter *mainSplitter; + + // Conversation list + QListWidget *conversationList; + QList conversations; + + // Message view + QVBoxLayout *messageLayout; + QTextEdit *messageDisplay; + QHBoxLayout *inputLayout; + QLineEdit *messageInput; + QPushButton *sendButton; + + // Current conversation + QString currentNumber; + QList currentMessages; + +private slots: + void populateConversationList(); + void handleConversationSelect(const QString &number); + void handleSendClick(); + void handleMessageReceived(const QString &number, const QString &message); + void updateConversationList(); +}; + +// Message structure +struct Q20Message { + QString id; + QString number; + QString content; + QDateTime timestamp; + bool isIncoming; + bool isRead; +}; + +// Conversation structure +struct Q20Conversation { + QString number; + QString name; + QString lastMessage; + QDateTime lastTimestamp; + int unreadCount; +}; +``` + +#### 4.3.3 Settings Application +**Settings Implementation:** +```cpp +// Settings application class +class Q20Settings : public QWidget +{ + Q_OBJECT + +public: + Q20Settings(QWidget *parent = nullptr); + +public slots: + void showGeneralSettings(); + void showDisplaySettings(); + void showSoundSettings(); + void showNetworkSettings(); + void showSecuritySettings(); + void showAbout(); + +private: + // UI layout + QVBoxLayout *mainLayout; + QHBoxLayout *navigationLayout; + QStackedWidget *settingsStack; + + // Navigation + QListWidget *settingsCategories; + QList categoryNames; + + // Settings pages + Q20GeneralSettings *generalSettings; + Q20DisplaySettings *displaySettings; + Q20SoundSettings *soundSettings; + Q20NetworkSettings *networkSettings; + Q20SecuritySettings *securitySettings; + Q20AboutPage *aboutPage; + +private slots: + void handleCategorySelect(int index); + void saveSettings(); + void loadSettings(); +}; + +// Display settings +class Q20DisplaySettings : public QWidget +{ + Q_OBJECT + +public: + Q20DisplaySettings(QWidget *parent = nullptr); + +private: + QVBoxLayout *mainLayout; + + // Brightness control + QHBoxLayout *brightnessLayout; + QLabel *brightnessLabel; + QSlider *brightnessSlider; + QLabel *brightnessValue; + + // Backlight timeout + QHBoxLayout *timeoutLayout; + QLabel *timeoutLabel; + QComboBox *timeoutCombo; + + // Keyboard backlight + QHBoxLayout *keyboardLayout; + QLabel *keyboardLabel; + QSlider *keyboardSlider; + QLabel *keyboardValue; + + // Auto-rotate + QHBoxLayout *rotateLayout; + QLabel *rotateLabel; + QCheckBox *rotateCheck; + +private slots: + void handleBrightnessChange(int value); + void handleTimeoutChange(const QString &timeout); + void handleKeyboardChange(int value); + void handleRotateChange(bool enabled); +}; +``` + +### 4.4 Keyboard Navigation System + +#### 4.4.1 Keyboard Shortcuts +**Shortcut Configuration:** +```cpp +// Keyboard shortcut manager +class Q20ShortcutManager : public QObject +{ + Q_OBJECT + +public: + Q20ShortcutManager(QObject *parent = nullptr); + + void registerShortcut(const QString &key, const QString &action); + void unregisterShortcut(const QString &key); + void handleKeyPress(const QString &key); + +private: + QHash shortcuts; + QHash shortcutObjects; + + void setupDefaultShortcuts(); + void handleShortcutAction(const QString &action); +}; + +// Default shortcuts +void Q20ShortcutManager::setupDefaultShortcuts() +{ + // Navigation shortcuts + registerShortcut("Alt+Tab", "switch_app"); + registerShortcut("Alt+F4", "close_app"); + registerShortcut("Alt+Enter", "fullscreen"); + registerShortcut("Alt+Space", "menu"); + + // Phone shortcuts + registerShortcut("Call", "dialer"); + registerShortcut("End", "end_call"); + registerShortcut("Menu", "app_launcher"); + registerShortcut("Back", "go_back"); + + // System shortcuts + registerShortcut("Ctrl+Alt+Del", "task_manager"); + registerShortcut("Ctrl+Alt+Backspace", "restart_ui"); + registerShortcut("Ctrl+Alt+T", "terminal"); + registerShortcut("Ctrl+Alt+S", "settings"); +} +``` + +#### 4.4.2 Focus Management +**Focus System:** +```cpp +// Focus manager +class Q20FocusManager : public QObject +{ + Q_OBJECT + +public: + Q20FocusManager(QObject *parent = nullptr); + + void setFocusWidget(QWidget *widget); + QWidget* getFocusedWidget(); + void moveFocus(Qt::Key key); + void cycleFocus(); + +private: + QWidget *currentFocus; + QList focusableWidgets; + + void updateFocusableWidgets(); + QWidget* findNextFocusable(QWidget *current, Qt::Key direction); + void highlightFocus(QWidget *widget); +}; + +// Focus movement implementation +void Q20FocusManager::moveFocus(Qt::Key key) +{ + QWidget *nextWidget = nullptr; + + switch (key) { + case Qt::Key_Tab: + nextWidget = findNextFocusable(currentFocus, Qt::Key_Tab); + break; + case Qt::Key_Backtab: + nextWidget = findNextFocusable(currentFocus, Qt::Key_Backtab); + break; + case Qt::Key_Left: + nextWidget = findNextFocusable(currentFocus, Qt::Key_Left); + break; + case Qt::Key_Right: + nextWidget = findNextFocusable(currentFocus, Qt::Key_Right); + break; + case Qt::Key_Up: + nextWidget = findNextFocusable(currentFocus, Qt::Key_Up); + break; + case Qt::Key_Down: + nextWidget = findNextFocusable(currentFocus, Qt::Key_Down); + break; + } + + if (nextWidget) { + setFocusWidget(nextWidget); + } +} +``` + +### 4.5 Trackpad Optimization + +#### 4.5.1 Trackpad Gestures +**Gesture Recognition:** +```cpp +// Trackpad gesture manager +class Q20TrackpadManager : public QObject +{ + Q_OBJECT + +public: + Q20TrackpadManager(QObject *parent = nullptr); + + void handleTrackpadEvent(const QPointF &position, int buttons); + void handleTrackpadGesture(const QString &gesture); + +private: + QPointF lastPosition; + QPointF startPosition; + QDateTime lastEvent; + bool isTracking; + + // Gesture detection + void detectSwipeGesture(const QPointF ¤t, const QPointF &start); + void detectPinchGesture(const QPointF &point1, const QPointF &point2); + void detectTapGesture(const QPointF &position); + void detectDoubleTapGesture(const QPointF &position); + + // Gesture actions + void handleSwipeLeft(); + void handleSwipeRight(); + void handleSwipeUp(); + void handleSwipeDown(); + void handlePinchIn(); + void handlePinchOut(); + void handleTap(); + void handleDoubleTap(); +}; + +// Gesture detection implementation +void Q20TrackpadManager::detectSwipeGesture(const QPointF ¤t, const QPointF &start) +{ + QPointF delta = current - start; + qreal distance = QLineF(start, current).length(); + qreal angle = QLineF(start, current).angle(); + + // Minimum swipe distance + if (distance < 50) { + return; + } + + // Determine swipe direction + if (angle >= 315 || angle < 45) { + handleSwipeRight(); + } else if (angle >= 45 && angle < 135) { + handleSwipeUp(); + } else if (angle >= 135 && angle < 225) { + handleSwipeLeft(); + } else if (angle >= 225 && angle < 315) { + handleSwipeDown(); + } +} +``` + +#### 4.5.2 Cursor Management +**Cursor System:** +```cpp +// Cursor manager +class Q20CursorManager : public QObject +{ + Q_OBJECT + +public: + Q20CursorManager(QObject *parent = nullptr); + + void setCursorPosition(const QPointF &position); + void setCursorVisible(bool visible); + void setCursorShape(Qt::CursorShape shape); + void animateCursor(); + +private: + QPointF currentPosition; + QPointF targetPosition; + bool isVisible; + Qt::CursorShape currentShape; + + // Cursor animation + QTimer *animationTimer; + qreal animationProgress; + + void updateCursorPosition(); + void drawCursor(); + void handleAnimation(); +}; + +// Cursor animation +void Q20CursorManager::animateCursor() +{ + if (currentPosition != targetPosition) { + QPointF delta = targetPosition - currentPosition; + currentPosition += delta * 0.1; // Smooth interpolation + + if (QLineF(currentPosition, targetPosition).length() < 1) { + currentPosition = targetPosition; + } + + updateCursorPosition(); + } +} +``` + +## 📊 Deliverables + +### 4.6 Complete UI System +**Requirements:** +- Functional display server +- Core applications working +- Keyboard navigation system +- Trackpad optimization +- Settings and customization + +### 4.7 Application Framework +**Components:** +- Qt-based application framework +- Window management system +- Input handling system +- Theme and styling system +- Plugin architecture + +### 4.8 User Experience +**Features:** +- Intuitive keyboard navigation +- Efficient trackpad usage +- Consistent UI design +- Responsive interface +- Accessibility support + +## ⏱️ Timeline + +**Week 1-2**: Display server development +**Week 3-4**: Application framework +**Week 5-6**: Core applications +**Week 7-8**: Keyboard navigation +**Week 9-10**: Trackpad optimization +**Week 11-12**: Testing and refinement + +**Total Duration**: 12 weeks (3 months) + +## 🎯 Success Criteria + +Phase 4 is successful when: +1. Complete UI system is functional +2. Core applications are working +3. Keyboard navigation is intuitive +4. Trackpad gestures are responsive +5. User experience is polished + +## 🚨 Risk Mitigation + +**High-Risk Scenarios:** +- Performance issues → Optimize rendering and input handling +- UI framework complexity → Simplify and modularize +- Keyboard navigation problems → Improve focus management +- Trackpad issues → Enhance gesture recognition +- Application bugs → Implement comprehensive testing \ No newline at end of file diff --git a/docs/PHASE_5_TELEPHONY.md b/docs/PHASE_5_TELEPHONY.md new file mode 100644 index 0000000..c2715c7 --- /dev/null +++ b/docs/PHASE_5_TELEPHONY.md @@ -0,0 +1,981 @@ +# Phase 5: Telephony & Messaging Stack Development + +## 🎯 Objectives +Develop a complete telephony and messaging system that provides calling, SMS, and data connectivity functionality for the BlackBerry Classic (Q20). + +## 📋 Detailed Tasks + +### 5.1 Modem Integration + +#### 5.1.1 Modem Hardware Analysis +**Qualcomm MDM9615 Specifications:** +- **Technology**: LTE Cat 3, HSPA+, CDMA +- **Interface**: QMI over USB or HSIC +- **Firmware**: Proprietary binary blob +- **Power Management**: Integrated power control +- **Security**: Hardware security modules + +**Modem Interface Options:** +1. **QMI (Qualcomm MSM Interface)**: Primary interface +2. **AT Commands**: Standard modem commands +3. **HSIC (High-Speed Inter-Chip)**: Direct connection +4. **USB**: Standard USB interface + +**Hardware Integration:** +```c +// Modem device structure +struct q20_modem { + struct device *dev; + struct usb_device *usb_dev; + struct qmi_device *qmi_dev; + + // Modem state + enum modem_state state; + bool powered; + bool registered; + bool data_connected; + + // Network information + struct network_info network; + struct signal_info signal; + struct sim_info sim; + + // Power management + struct regulator *vdd; + struct gpio_desc *reset_gpio; + struct gpio_desc *power_gpio; + + // Communication + struct workqueue_struct *workqueue; + struct work_struct init_work; + struct work_struct power_work; + + // Callbacks + void (*call_state_cb)(struct call_info *call); + void (*sms_received_cb)(struct sms_info *sms); + void (*network_state_cb)(struct network_info *network); +}; + +// Network information +struct network_info { + char mcc[4]; + char mnc[4]; + char operator_name[64]; + enum network_type type; + int signal_strength; + bool roaming; +}; + +// Signal information +struct signal_info { + int rssi; + int rsrp; + int rsrq; + int sinr; + enum signal_quality quality; +}; +``` + +#### 5.1.2 QMI Interface Implementation +**QMI Protocol Stack:** +```c +// QMI device structure +struct qmi_device { + struct usb_device *usb_dev; + struct urb *urb; + struct mutex mutex; + + // QMI state + u16 transaction_id; + u8 service_id; + bool connected; + + // Message handling + struct list_head pending_requests; + struct work_struct message_work; + + // Service handlers + struct qmi_service *wds_service; // Wireless Data Service + struct qmi_service *dms_service; // Device Management Service + struct qmi_service *nas_service; // Network Access Service + struct qmi_service *wms_service; // Wireless Messaging Service + struct qmi_service *voice_service; // Voice Service +}; + +// QMI message structure +struct qmi_message { + struct list_head list; + u16 transaction_id; + u8 service_id; + u8 message_id; + u16 message_length; + u8 *message_data; + void (*callback)(struct qmi_message *msg, void *data); + void *callback_data; +}; + +// QMI service implementation +struct qmi_service { + struct qmi_device *qmi_dev; + u8 service_id; + char service_name[32]; + + // Service operations + int (*init)(struct qmi_service *service); + void (*deinit)(struct qmi_service *service); + int (*send_message)(struct qmi_service *service, u8 message_id, + void *data, size_t data_len, + void (*callback)(struct qmi_message *msg, void *data), + void *callback_data); + void (*handle_message)(struct qmi_service *service, struct qmi_message *msg); +}; + +// WDS (Wireless Data Service) implementation +static int qmi_wds_init(struct qmi_service *service) +{ + struct qmi_wds_service *wds = container_of(service, struct qmi_wds_service, service); + + // Initialize WDS service + wds->service.service_id = QMI_WDS_SERVICE_ID; + strcpy(wds->service.service_name, "WDS"); + + // Register message handlers + wds->service.handle_message = qmi_wds_handle_message; + + return 0; +} + +static int qmi_wds_start_network(struct qmi_service *service, const char *apn) +{ + struct qmi_wds_start_network_req req; + struct qmi_message *msg; + + // Prepare request + memset(&req, 0, sizeof(req)); + req.profile_index = 1; + strncpy(req.apn, apn, sizeof(req.apn) - 1); + + // Send message + msg = qmi_alloc_message(service->qmi_dev, QMI_WDS_START_NETWORK_MSG_ID, + &req, sizeof(req)); + if (!msg) + return -ENOMEM; + + return qmi_send_message(service->qmi_dev, msg); +} +``` + +#### 5.1.3 Modem Power Management +**Power Management Implementation:** +```c +// Modem power management +static int q20_modem_power_on(struct q20_modem *modem) +{ + int ret; + + // Enable power supply + ret = regulator_enable(modem->vdd); + if (ret) + return ret; + + // Assert reset + gpiod_set_value(modem->reset_gpio, 0); + msleep(10); + + // De-assert reset + gpiod_set_value(modem->reset_gpio, 1); + msleep(100); + + // Assert power + gpiod_set_value(modem->power_gpio, 1); + msleep(1000); + + // Initialize QMI interface + ret = qmi_device_init(modem->qmi_dev); + if (ret) + goto power_off; + + // Start initialization work + queue_work(modem->workqueue, &modem->init_work); + + modem->powered = true; + return 0; + +power_off: + q20_modem_power_off(modem); + return ret; +} + +static int q20_modem_power_off(struct q20_modem *modem) +{ + // De-assert power + gpiod_set_value(modem->power_gpio, 0); + msleep(100); + + // Assert reset + gpiod_set_value(modem->reset_gpio, 0); + + // Disable power supply + regulator_disable(modem->vdd); + + modem->powered = false; + modem->registered = false; + modem->data_connected = false; + + return 0; +} + +// Modem initialization work +static void q20_modem_init_work(struct work_struct *work) +{ + struct q20_modem *modem = container_of(work, struct q20_modem, init_work); + int ret; + + // Initialize QMI services + ret = qmi_wds_init(&modem->qmi_dev->wds_service); + if (ret) + goto init_failed; + + ret = qmi_dms_init(&modem->qmi_dev->dms_service); + if (ret) + goto init_failed; + + ret = qmi_nas_init(&modem->qmi_dev->nas_service); + if (ret) + goto init_failed; + + ret = qmi_wms_init(&modem->qmi_dev->wms_service); + if (ret) + goto init_failed; + + ret = qmi_voice_init(&modem->qmi_dev->voice_service); + if (ret) + goto init_failed; + + // Get device information + ret = qmi_dms_get_device_info(&modem->qmi_dev->dms_service); + if (ret) + goto init_failed; + + // Get SIM information + ret = qmi_dms_get_sim_info(&modem->qmi_dev->dms_service); + if (ret) + goto init_failed; + + // Register for network events + ret = qmi_nas_register_for_events(&modem->qmi_dev->nas_service); + if (ret) + goto init_failed; + + // Register for SMS events + ret = qmi_wms_register_for_events(&modem->qmi_dev->wms_service); + if (ret) + goto init_failed; + + // Register for voice events + ret = qmi_voice_register_for_events(&modem->qmi_dev->voice_service); + if (ret) + goto init_failed; + + modem->state = MODEM_STATE_READY; + return; + +init_failed: + dev_err(modem->dev, "Modem initialization failed: %d\n", ret); + q20_modem_power_off(modem); +} +``` + +### 5.2 Voice Call System + +#### 5.2.1 Voice Service Implementation +**Voice Call Management:** +```c +// Voice call structure +struct q20_call { + struct list_head list; + u8 call_id; + enum call_state state; + enum call_type type; + + // Call information + char number[32]; + char name[64]; + u32 duration; + struct timespec start_time; + + // Audio management + bool audio_connected; + bool muted; + bool speaker_on; + + // Callbacks + void (*state_changed_cb)(struct q20_call *call); + void (*audio_state_cb)(struct q20_call *call); +}; + +// Voice service implementation +struct q20_voice_service { + struct qmi_service service; + struct q20_modem *modem; + + // Call management + struct list_head active_calls; + struct q20_call *current_call; + u8 next_call_id; + + // Audio management + struct q20_audio_manager *audio_mgr; + + // Callbacks + void (*call_state_changed_cb)(struct q20_call *call); + void (*incoming_call_cb)(struct q20_call *call); + void (*call_ended_cb)(struct q20_call *call); +}; + +// Voice service operations +static int q20_voice_dial(struct q20_voice_service *voice, const char *number) +{ + struct qmi_voice_dial_req req; + struct qmi_message *msg; + struct q20_call *call; + int ret; + + // Create call structure + call = kzalloc(sizeof(*call), GFP_KERNEL); + if (!call) + return -ENOMEM; + + call->call_id = voice->next_call_id++; + call->state = CALL_STATE_DIALING; + call->type = CALL_TYPE_VOICE; + strncpy(call->number, number, sizeof(call->number) - 1); + + // Add to active calls + list_add_tail(&call->list, &voice->active_calls); + voice->current_call = call; + + // Prepare dial request + memset(&req, 0, sizeof(req)); + req.call_id = call->call_id; + strncpy(req.number, number, sizeof(req.number) - 1); + req.call_type = QMI_VOICE_CALL_TYPE_VOICE; + + // Send dial request + msg = qmi_alloc_message(&voice->service, QMI_VOICE_DIAL_MSG_ID, + &req, sizeof(req)); + if (!msg) { + ret = -ENOMEM; + goto dial_failed; + } + + msg->callback = q20_voice_dial_callback; + msg->callback_data = call; + + ret = qmi_send_message(voice->service.qmi_dev, msg); + if (ret) + goto dial_failed; + + // Start call timer + call->start_time = current_kernel_time(); + + return 0; + +dial_failed: + list_del(&call->list); + kfree(call); + return ret; +} + +static int q20_voice_answer(struct q20_voice_service *voice, struct q20_call *call) +{ + struct qmi_voice_answer_req req; + struct qmi_message *msg; + int ret; + + if (!call || call->state != CALL_STATE_INCOMING) + return -EINVAL; + + // Prepare answer request + memset(&req, 0, sizeof(req)); + req.call_id = call->call_id; + + // Send answer request + msg = qmi_alloc_message(&voice->service, QMI_VOICE_ANSWER_MSG_ID, + &req, sizeof(req)); + if (!msg) + return -ENOMEM; + + msg->callback = q20_voice_answer_callback; + msg->callback_data = call; + + ret = qmi_send_message(voice->service.qmi_dev, msg); + if (ret) + return ret; + + call->state = CALL_STATE_ANSWERING; + return 0; +} + +static int q20_voice_end_call(struct q20_voice_service *voice, struct q20_call *call) +{ + struct qmi_voice_end_call_req req; + struct qmi_message *msg; + int ret; + + if (!call) + return -EINVAL; + + // Prepare end call request + memset(&req, 0, sizeof(req)); + req.call_id = call->call_id; + + // Send end call request + msg = qmi_alloc_message(&voice->service, QMI_VOICE_END_CALL_MSG_ID, + &req, sizeof(req)); + if (!msg) + return -ENOMEM; + + msg->callback = q20_voice_end_call_callback; + msg->callback_data = call; + + ret = qmi_send_message(voice->service.qmi_dev, msg); + if (ret) + return ret; + + call->state = CALL_STATE_ENDING; + return 0; +} +``` + +#### 5.2.2 Audio Management +**Call Audio System:** +```c +// Audio manager for calls +struct q20_audio_manager { + struct q20_modem *modem; + + // Audio state + bool call_audio_active; + bool speaker_on; + bool muted; + + // Audio routing + enum audio_route current_route; + struct q20_audio_route *routes; + int num_routes; + + // Audio control + struct q20_audio_control *control; +}; + +// Audio routing implementation +static int q20_audio_route_call_audio(struct q20_audio_manager *audio_mgr, + enum audio_route route) +{ + struct q20_audio_route *audio_route; + int ret; + + // Find audio route + audio_route = q20_audio_find_route(audio_mgr, route); + if (!audio_route) + return -EINVAL; + + // Configure audio path + ret = q20_audio_configure_path(audio_mgr, audio_route); + if (ret) + return ret; + + // Update state + audio_mgr->current_route = route; + audio_mgr->call_audio_active = true; + + return 0; +} + +static int q20_audio_mute_call(struct q20_audio_manager *audio_mgr, bool mute) +{ + int ret; + + if (mute == audio_mgr->muted) + return 0; + + // Configure mute + ret = q20_audio_configure_mute(audio_mgr, mute); + if (ret) + return ret; + + audio_mgr->muted = mute; + return 0; +} + +static int q20_audio_toggle_speaker(struct q20_audio_manager *audio_mgr) +{ + enum audio_route new_route; + int ret; + + if (audio_mgr->speaker_on) { + new_route = AUDIO_ROUTE_EARPIECE; + } else { + new_route = AUDIO_ROUTE_SPEAKER; + } + + ret = q20_audio_route_call_audio(audio_mgr, new_route); + if (ret) + return ret; + + audio_mgr->speaker_on = (new_route == AUDIO_ROUTE_SPEAKER); + return 0; +} +``` + +### 5.3 SMS System + +#### 5.3.1 SMS Service Implementation +**SMS Management:** +```c +// SMS message structure +struct q20_sms { + struct list_head list; + u32 message_id; + enum sms_type type; + enum sms_state state; + + // Message content + char number[32]; + char text[160]; + struct timespec timestamp; + + // Message metadata + bool read; + bool sent; + u8 parts; + u8 part_number; +}; + +// SMS service implementation +struct q20_sms_service { + struct qmi_service service; + struct q20_modem *modem; + + // Message storage + struct list_head messages; + struct q20_sms_storage *storage; + + // Message handling + u32 next_message_id; + struct work_struct message_work; + + // Callbacks + void (*message_received_cb)(struct q20_sms *sms); + void (*message_sent_cb)(struct q20_sms *sms); + void (*message_failed_cb)(struct q20_sms *sms); +}; + +// SMS operations +static int q20_sms_send_message(struct q20_sms_service *sms_service, + const char *number, const char *text) +{ + struct qmi_wms_send_sms_req req; + struct qmi_message *msg; + struct q20_sms *sms; + int ret; + + // Create SMS structure + sms = kzalloc(sizeof(*sms), GFP_KERNEL); + if (!sms) + return -ENOMEM; + + sms->message_id = sms_service->next_message_id++; + sms->type = SMS_TYPE_OUTGOING; + sms->state = SMS_STATE_SENDING; + strncpy(sms->number, number, sizeof(sms->number) - 1); + strncpy(sms->text, text, sizeof(sms->text) - 1); + sms->timestamp = current_kernel_time(); + + // Add to message list + list_add_tail(&sms->list, &sms_service->messages); + + // Store message + ret = q20_sms_store_message(sms_service->storage, sms); + if (ret) + goto send_failed; + + // Prepare send request + memset(&req, 0, sizeof(req)); + req.message_id = sms->message_id; + strncpy(req.number, number, sizeof(req.number) - 1); + strncpy(req.text, text, sizeof(req.text) - 1); + req.message_format = QMI_WMS_MESSAGE_FORMAT_GSM; + + // Send SMS request + msg = qmi_alloc_message(&sms_service->service, QMI_WMS_SEND_SMS_MSG_ID, + &req, sizeof(req)); + if (!msg) { + ret = -ENOMEM; + goto send_failed; + } + + msg->callback = q20_sms_send_callback; + msg->callback_data = sms; + + ret = qmi_send_message(sms_service->service.qmi_dev, msg); + if (ret) + goto send_failed; + + return 0; + +send_failed: + list_del(&sms->list); + kfree(sms); + return ret; +} + +static int q20_sms_delete_message(struct q20_sms_service *sms_service, + struct q20_sms *sms) +{ + int ret; + + if (!sms) + return -EINVAL; + + // Remove from storage + ret = q20_sms_remove_message(sms_service->storage, sms); + if (ret) + return ret; + + // Remove from list + list_del(&sms->list); + kfree(sms); + + return 0; +} + +// SMS callback handlers +static void q20_sms_send_callback(struct qmi_message *msg, void *data) +{ + struct q20_sms *sms = data; + struct qmi_wms_send_sms_resp *resp = msg->message_data; + + if (resp->result == QMI_RESULT_SUCCESS) { + sms->state = SMS_STATE_SENT; + sms->sent = true; + + if (sms->service->message_sent_cb) + sms->service->message_sent_cb(sms); + } else { + sms->state = SMS_STATE_FAILED; + + if (sms->service->message_failed_cb) + sms->service->message_failed_cb(sms); + } +} + +static void q20_sms_received_callback(struct qmi_message *msg, void *data) +{ + struct q20_sms_service *sms_service = data; + struct qmi_wms_message_received_ind *ind = msg->message_data; + struct q20_sms *sms; + + // Create SMS structure + sms = kzalloc(sizeof(*sms), GFP_KERNEL); + if (!sms) + return; + + sms->message_id = sms_service->next_message_id++; + sms->type = SMS_TYPE_INCOMING; + sms->state = SMS_STATE_RECEIVED; + strncpy(sms->number, ind->number, sizeof(sms->number) - 1); + strncpy(sms->text, ind->text, sizeof(sms->text) - 1); + sms->timestamp = current_kernel_time(); + + // Add to message list + list_add_tail(&sms->list, &sms_service->messages); + + // Store message + q20_sms_store_message(sms_service->storage, sms); + + // Notify application + if (sms_service->message_received_cb) + sms_service->message_received_cb(sms); +} +``` + +#### 5.3.2 SMS Storage System +**Message Storage:** +```c +// SMS storage interface +struct q20_sms_storage { + struct device *dev; + + // Storage operations + int (*store_message)(struct q20_sms_storage *storage, struct q20_sms *sms); + int (*load_messages)(struct q20_sms_storage *storage, struct list_head *messages); + int (*remove_message)(struct q20_sms_storage *storage, struct q20_sms *sms); + int (*clear_messages)(struct q20_sms_storage *storage); + + // Storage backend + void *private_data; +}; + +// SQLite storage implementation +struct q20_sms_sqlite_storage { + struct q20_sms_storage storage; + sqlite3 *db; + char *db_path; +}; + +static int q20_sms_sqlite_store_message(struct q20_sms_storage *storage, + struct q20_sms *sms) +{ + struct q20_sms_sqlite_storage *sqlite_storage = + container_of(storage, struct q20_sms_sqlite_storage, storage); + sqlite3_stmt *stmt; + int ret; + + const char *sql = "INSERT INTO messages (id, type, number, text, timestamp, read, sent) " + "VALUES (?, ?, ?, ?, ?, ?, ?)"; + + ret = sqlite3_prepare_v2(sqlite_storage->db, sql, -1, &stmt, NULL); + if (ret != SQLITE_OK) + return -EIO; + + sqlite3_bind_int(stmt, 1, sms->message_id); + sqlite3_bind_int(stmt, 2, sms->type); + sqlite3_bind_text(stmt, 3, sms->number, -1, SQLITE_STATIC); + sqlite3_bind_text(stmt, 4, sms->text, -1, SQLITE_STATIC); + sqlite3_bind_int64(stmt, 5, sms->timestamp.tv_sec); + sqlite3_bind_int(stmt, 6, sms->read); + sqlite3_bind_int(stmt, 7, sms->sent); + + ret = sqlite3_step(stmt); + sqlite3_finalize(stmt); + + return (ret == SQLITE_DONE) ? 0 : -EIO; +} + +static int q20_sms_sqlite_load_messages(struct q20_sms_storage *storage, + struct list_head *messages) +{ + struct q20_sms_sqlite_storage *sqlite_storage = + container_of(storage, struct q20_sms_sqlite_storage, storage); + sqlite3_stmt *stmt; + int ret; + + const char *sql = "SELECT id, type, number, text, timestamp, read, sent " + "FROM messages ORDER BY timestamp DESC"; + + ret = sqlite3_prepare_v2(sqlite_storage->db, sql, -1, &stmt, NULL); + if (ret != SQLITE_OK) + return -EIO; + + while (sqlite3_step(stmt) == SQLITE_ROW) { + struct q20_sms *sms = kzalloc(sizeof(*sms), GFP_KERNEL); + if (!sms) + continue; + + sms->message_id = sqlite3_column_int(stmt, 0); + sms->type = sqlite3_column_int(stmt, 1); + strncpy(sms->number, (char*)sqlite3_column_text(stmt, 2), sizeof(sms->number) - 1); + strncpy(sms->text, (char*)sqlite3_column_text(stmt, 3), sizeof(sms->text) - 1); + sms->timestamp.tv_sec = sqlite3_column_int64(stmt, 4); + sms->read = sqlite3_column_int(stmt, 5); + sms->sent = sqlite3_column_int(stmt, 6); + + list_add_tail(&sms->list, messages); + } + + sqlite3_finalize(stmt); + return 0; +} +``` + +### 5.4 Data Connectivity + +#### 5.4.1 Data Service Implementation +**Data Connection Management:** +```c +// Data connection structure +struct q20_data_connection { + struct q20_modem *modem; + + // Connection state + bool connected; + enum data_technology technology; + char apn[64]; + + // Network interface + struct net_device *netdev; + struct in_addr local_ip; + struct in_addr gateway_ip; + struct in_addr dns1_ip; + struct in_addr dns2_ip; + + // Statistics + u64 bytes_rx; + u64 bytes_tx; + u32 packets_rx; + u32 packets_tx; + + // Callbacks + void (*connected_cb)(struct q20_data_connection *conn); + void (*disconnected_cb)(struct q20_data_connection *conn); + void (*error_cb)(struct q20_data_connection *conn, int error); +}; + +// Data service operations +static int q20_data_connect(struct q20_data_connection *conn, const char *apn) +{ + struct qmi_wds_start_network_req req; + struct qmi_message *msg; + int ret; + + if (conn->connected) + return -EALREADY; + + // Prepare connection request + memset(&req, 0, sizeof(req)); + req.profile_index = 1; + strncpy(req.apn, apn, sizeof(req.apn) - 1); + req.auth_type = QMI_WDS_AUTH_TYPE_NONE; + + // Send start network request + msg = qmi_alloc_message(&conn->modem->qmi_dev->wds_service, + QMI_WDS_START_NETWORK_MSG_ID, + &req, sizeof(req)); + if (!msg) + return -ENOMEM; + + msg->callback = q20_data_connect_callback; + msg->callback_data = conn; + + ret = qmi_send_message(conn->modem->qmi_dev, msg); + if (ret) + return ret; + + strncpy(conn->apn, apn, sizeof(conn->apn) - 1); + return 0; +} + +static int q20_data_disconnect(struct q20_data_connection *conn) +{ + struct qmi_wds_stop_network_req req; + struct qmi_message *msg; + int ret; + + if (!conn->connected) + return -ENOTCONN; + + // Prepare disconnect request + memset(&req, 0, sizeof(req)); + req.profile_index = 1; + + // Send stop network request + msg = qmi_alloc_message(&conn->modem->qmi_dev->wds_service, + QMI_WDS_STOP_NETWORK_MSG_ID, + &req, sizeof(req)); + if (!msg) + return -ENOMEM; + + msg->callback = q20_data_disconnect_callback; + msg->callback_data = conn; + + ret = qmi_send_message(conn->modem->qmi_dev, msg); + if (ret) + return ret; + + return 0; +} + +// Data connection callbacks +static void q20_data_connect_callback(struct qmi_message *msg, void *data) +{ + struct q20_data_connection *conn = data; + struct qmi_wds_start_network_resp *resp = msg->message_data; + + if (resp->result == QMI_RESULT_SUCCESS) { + conn->connected = true; + conn->technology = resp->technology; + + // Configure network interface + q20_data_configure_interface(conn); + + if (conn->connected_cb) + conn->connected_cb(conn); + } else { + if (conn->error_cb) + conn->error_cb(conn, -EIO); + } +} + +static void q20_data_disconnect_callback(struct qmi_message *msg, void *data) +{ + struct q20_data_connection *conn = data; + struct qmi_wds_stop_network_resp *resp = msg->message_data; + + if (resp->result == QMI_RESULT_SUCCESS) { + conn->connected = false; + + // Clean up network interface + q20_data_cleanup_interface(conn); + + if (conn->disconnected_cb) + conn->disconnected_cb(conn); + } +} +``` + +## 📊 Deliverables + +### 5.5 Complete Telephony Stack +**Requirements:** +- Functional modem integration +- Voice call system working +- SMS messaging system +- Data connectivity +- Network management + +### 5.6 Telephony Applications +**Components:** +- Phone dialer application +- SMS messaging application +- Contacts management +- Call history +- Network settings + +### 5.7 Integration Layer +**Features:** +- Modem abstraction layer +- Service management +- Event handling +- Error recovery +- Power management + +## ⏱️ Timeline + +**Week 1-2**: Modem integration +**Week 3-4**: Voice call system +**Week 5-6**: SMS system +**Week 7-8**: Data connectivity +**Week 9-10**: Network management +**Week 11-12**: Testing and integration + +**Total Duration**: 12 weeks (3 months) + +## 🎯 Success Criteria + +Phase 5 is successful when: +1. Complete telephony stack is functional +2. Voice calls work reliably +3. SMS messaging is operational +4. Data connectivity is stable +5. Network management is complete + +## 🚨 Risk Mitigation + +**High-Risk Scenarios:** +- Modem firmware issues → Extract and analyze firmware blobs +- QMI protocol complexity → Implement comprehensive testing +- Audio routing problems → Develop fallback audio paths +- Network connectivity issues → Implement robust error handling +- SMS storage problems → Use reliable storage backend \ No newline at end of file diff --git a/docs/PHASE_6_PACKAGING.md b/docs/PHASE_6_PACKAGING.md new file mode 100644 index 0000000..9dce2be --- /dev/null +++ b/docs/PHASE_6_PACKAGING.md @@ -0,0 +1,1045 @@ +# Phase 6: Packaging & Updates System + +## 🎯 Objectives +Develop a robust packaging and update system that provides secure, reliable system updates and application management for the BlackBerry Classic (Q20). + +## 📋 Detailed Tasks + +### 6.1 System Packaging Architecture + +#### 6.1.1 Root Filesystem Design +**System Partition Layout:** +```bash +# Partition structure +/dev/mmcblk0p1 - Bootloader (2MB) +/dev/mmcblk0p2 - Boot partition (32MB) +/dev/mmcblk0p3 - System A (1GB) +/dev/mmcblk0p4 - System B (1GB) +/dev/mmcblk0p5 - User data (12GB) +/dev/mmcblk0p6 - Recovery (256MB) +/dev/mmcblk0p7 - Cache (512MB) +``` + +**System Components:** +```bash +# System directory structure +/ +├── bin/ # Essential binaries +├── boot/ # Boot files and kernel +├── dev/ # Device files +├── etc/ # Configuration files +├── home/ # User home directories +├── lib/ # Shared libraries +├── media/ # Mount points +├── mnt/ # Temporary mounts +├── opt/ # Optional applications +├── proc/ # Process information +├── root/ # Root user home +├── run/ # Runtime data +├── sbin/ # System binaries +├── srv/ # Service data +├── sys/ # System information +├── tmp/ # Temporary files +├── usr/ # User programs and data +└── var/ # Variable data +``` + +**System Package Structure:** +```bash +# Package format +package-name-version.tar.xz +├── metadata.json # Package metadata +├── filesystem.tar.xz # System files +├── kernel.tar.xz # Kernel and modules +├── device-tree.dtb # Device tree blob +└── scripts/ # Installation scripts + ├── pre-install.sh + ├── post-install.sh + ├── pre-remove.sh + └── post-remove.sh +``` + +#### 6.1.2 Package Management System +**Package Manager Design:** +```c +// Package manager structure +struct q20_package_manager { + struct device *dev; + + // Package database + struct q20_package_db *db; + struct q20_package_cache *cache; + + // Installation state + struct q20_installation_state *install_state; + struct workqueue_struct *workqueue; + + // Package operations + int (*install_package)(struct q20_package_manager *pm, const char *package_path); + int (*remove_package)(struct q20_package_manager *pm, const char *package_name); + int (*update_package)(struct q20_package_manager *pm, const char *package_name); + int (*list_packages)(struct q20_package_manager *pm, struct list_head *packages); + + // Update management + int (*check_updates)(struct q20_package_manager *pm); + int (*download_update)(struct q20_package_manager *pm, const char *update_url); + int (*install_update)(struct q20_package_manager *pm, const char *update_path); +}; + +// Package structure +struct q20_package { + struct list_head list; + char name[64]; + char version[32]; + char description[256]; + char maintainer[64]; + char license[32]; + + // Dependencies + struct list_head dependencies; + struct list_head conflicts; + struct list_head provides; + + // Files + struct list_head files; + size_t installed_size; + size_t download_size; + + // Metadata + time_t install_time; + time_t build_time; + char build_host[64]; + char architecture[16]; + + // State + enum package_state state; + bool installed; + bool essential; +}; + +// Package database +struct q20_package_db { + struct device *dev; + sqlite3 *db; + char *db_path; + + // Database operations + int (*add_package)(struct q20_package_db *db, struct q20_package *pkg); + int (*remove_package)(struct q20_package_db *db, const char *name); + int (*get_package)(struct q20_package_db *db, const char *name, struct q20_package *pkg); + int (*list_packages)(struct q20_package_db *db, struct list_head *packages); + int (*update_package)(struct q20_package_db *db, struct q20_package *pkg); +}; +``` + +**Package Installation Process:** +```c +// Package installation +static int q20_package_install(struct q20_package_manager *pm, const char *package_path) +{ + struct q20_package *pkg; + struct q20_package *existing_pkg; + int ret; + + // Load package metadata + ret = q20_package_load_metadata(package_path, &pkg); + if (ret) + return ret; + + // Check if package is already installed + existing_pkg = q20_package_db_get_package(pm->db, pkg->name); + if (existing_pkg) { + // Check if update is needed + if (q20_package_version_compare(pkg->version, existing_pkg->version) <= 0) { + dev_info(pm->dev, "Package %s is already up to date\n", pkg->name); + q20_package_free(pkg); + return 0; + } + + // Remove old package + ret = q20_package_remove_internal(pm, existing_pkg); + if (ret) + goto install_failed; + } + + // Check dependencies + ret = q20_package_check_dependencies(pm, pkg); + if (ret) + goto install_failed; + + // Run pre-install script + ret = q20_package_run_script(pkg, "pre-install.sh"); + if (ret) + goto install_failed; + + // Extract filesystem + ret = q20_package_extract_filesystem(pkg, package_path); + if (ret) + goto install_failed; + + // Install kernel if needed + if (q20_package_has_kernel(pkg)) { + ret = q20_package_install_kernel(pkg); + if (ret) + goto install_failed; + } + + // Install device tree if needed + if (q20_package_has_device_tree(pkg)) { + ret = q20_package_install_device_tree(pkg); + if (ret) + goto install_failed; + } + + // Add to package database + ret = q20_package_db_add_package(pm->db, pkg); + if (ret) + goto install_failed; + + // Run post-install script + ret = q20_package_run_script(pkg, "post-install.sh"); + if (ret) + goto install_failed; + + pkg->installed = true; + pkg->install_time = current_kernel_time().tv_sec; + + dev_info(pm->dev, "Package %s installed successfully\n", pkg->name); + return 0; + +install_failed: + // Cleanup on failure + q20_package_cleanup_failed_install(pkg); + q20_package_free(pkg); + return ret; +} +``` + +### 6.2 Update System + +#### 6.2.1 OSTree Integration +**OSTree System Design:** +```c +// OSTree system structure +struct q20_ostree_system { + struct device *dev; + + // OSTree repository + struct ostree_repo *repo; + char *repo_path; + + // Boot management + struct ostree_boot_manager *boot_mgr; + char *boot_path; + + // Deployment management + struct list_head deployments; + struct q20_ostree_deployment *current_deployment; + struct q20_ostree_deployment *pending_deployment; + + // Update operations + int (*pull_updates)(struct q20_ostree_system *ostree, const char *remote_url); + int (*deploy_update)(struct q20_ostree_system *ostree, const char *commit_hash); + int (*rollback)(struct q20_ostree_system *ostree); + int (*cleanup)(struct q20_ostree_system *ostree); +}; + +// OSTree deployment +struct q20_ostree_deployment { + struct list_head list; + char *commit_hash; + char *version; + char *description; + + // Deployment state + enum deployment_state state; + bool booted; + bool pending; + + // File system + char *root_path; + char *boot_path; + + // Metadata + time_t deploy_time; + time_t boot_time; + int boot_count; +}; + +// OSTree operations +static int q20_ostree_pull_updates(struct q20_ostree_system *ostree, const char *remote_url) +{ + OstreeRepo *repo = ostree->repo; + OstreeAsyncProgress *progress; + GCancellable *cancellable; + char *refspec; + int ret; + + // Create progress tracker + progress = ostree_async_progress_new(); + cancellable = g_cancellable_new(); + + // Construct refspec + refspec = g_strdup_printf("q20:q20/%s", ostree->current_deployment->version); + + // Pull updates from remote + ret = ostree_repo_pull_with_options(repo, remote_url, refspec, NULL, progress, cancellable, NULL); + if (ret) { + dev_err(ostree->dev, "Failed to pull updates: %s\n", g_strerror(ret)); + goto pull_failed; + } + + // Check for new commits + ret = q20_ostree_check_new_commits(ostree); + if (ret) + goto pull_failed; + + dev_info(ostree->dev, "Updates pulled successfully\n"); + +pull_failed: + g_free(refspec); + g_object_unref(progress); + g_object_unref(cancellable); + return ret; +} + +static int q20_ostree_deploy_update(struct q20_ostree_system *ostree, const char *commit_hash) +{ + OstreeRepo *repo = ostree->repo; + OstreeDeployment *deployment; + char *deployment_path; + int ret; + + // Create new deployment + ret = ostree_repo_prepare_transaction(repo, NULL, NULL); + if (ret) + return ret; + + // Deploy new commit + ret = ostree_repo_write_delta_super(repo, commit_hash, NULL, NULL, NULL); + if (ret) + goto deploy_failed; + + // Commit transaction + ret = ostree_repo_commit_transaction(repo, NULL, NULL); + if (ret) + goto deploy_failed; + + // Create deployment + deployment = q20_ostree_create_deployment(ostree, commit_hash); + if (!deployment) { + ret = -ENOMEM; + goto deploy_failed; + } + + // Set as pending + deployment->state = DEPLOYMENT_STATE_PENDING; + deployment->pending = true; + ostree->pending_deployment = deployment; + + // Update bootloader + ret = q20_ostree_update_bootloader(ostree, deployment); + if (ret) + goto deploy_failed; + + dev_info(ostree->dev, "Update deployed successfully\n"); + return 0; + +deploy_failed: + ostree_repo_abort_transaction(repo, NULL); + return ret; +} +``` + +#### 6.2.2 Delta Updates +**Delta Update System:** +```c +// Delta update structure +struct q20_delta_update { + struct device *dev; + + // Delta information + char *from_version; + char *to_version; + char *delta_path; + + // Delta operations + struct list_head operations; + size_t total_size; + size_t compressed_size; + + // Progress tracking + struct q20_delta_progress *progress; + struct work_struct apply_work; +}; + +// Delta operation types +enum delta_operation_type { + DELTA_OP_COPY, // Copy file from base + DELTA_OP_ADD, // Add new file + DELTA_OP_DELETE, // Delete file + DELTA_OP_PATCH, // Apply binary patch + DELTA_OP_SYMLINK, // Create symlink + DELTA_OP_CHMOD, // Change permissions +}; + +// Delta operation +struct q20_delta_operation { + struct list_head list; + enum delta_operation_type type; + + // File information + char *source_path; + char *target_path; + mode_t permissions; + + // Patch data + void *patch_data; + size_t patch_size; + + // Progress + size_t bytes_processed; + bool completed; +}; + +// Delta update application +static int q20_delta_apply_update(struct q20_delta_update *delta) +{ + struct q20_delta_operation *op; + int ret; + + // Initialize progress tracking + delta->progress = q20_delta_progress_create(delta); + if (!delta->progress) + return -ENOMEM; + + // Process each operation + list_for_each_entry(op, &delta->operations, list) { + ret = q20_delta_apply_operation(delta, op); + if (ret) { + dev_err(delta->dev, "Failed to apply operation: %d\n", ret); + goto apply_failed; + } + + // Update progress + q20_delta_progress_update(delta->progress, op); + } + + // Verify update + ret = q20_delta_verify_update(delta); + if (ret) + goto apply_failed; + + dev_info(delta->dev, "Delta update applied successfully\n"); + return 0; + +apply_failed: + // Rollback on failure + q20_delta_rollback(delta); + return ret; +} + +static int q20_delta_apply_operation(struct q20_delta_update *delta, + struct q20_delta_operation *op) +{ + int ret; + + switch (op->type) { + case DELTA_OP_COPY: + ret = q20_delta_copy_file(op->source_path, op->target_path); + break; + + case DELTA_OP_ADD: + ret = q20_delta_add_file(op->target_path, op->patch_data, op->patch_size); + break; + + case DELTA_OP_DELETE: + ret = q20_delta_delete_file(op->target_path); + break; + + case DELTA_OP_PATCH: + ret = q20_delta_patch_file(op->source_path, op->target_path, + op->patch_data, op->patch_size); + break; + + case DELTA_OP_SYMLINK: + ret = q20_delta_create_symlink(op->source_path, op->target_path); + break; + + case DELTA_OP_CHMOD: + ret = q20_delta_change_permissions(op->target_path, op->permissions); + break; + + default: + ret = -EINVAL; + break; + } + + if (ret == 0) { + op->completed = true; + } + + return ret; +} +``` + +### 6.3 Application Sandboxing + +#### 6.3.1 Flatpak Integration +**Flatpak System Design:** +```c +// Flatpak system structure +struct q20_flatpak_system { + struct device *dev; + + // Flatpak installation + struct flatpak_installation *installation; + char *installation_path; + + // Application management + struct list_head applications; + struct q20_flatpak_app *current_app; + + // Runtime management + struct list_head runtimes; + struct q20_flatpak_runtime *default_runtime; + + // Operations + int (*install_app)(struct q20_flatpak_system *fp, const char *app_id); + int (*remove_app)(struct q20_flatpak_system *fp, const char *app_id); + int (*update_app)(struct q20_flatpak_system *fp, const char *app_id); + int (*launch_app)(struct q20_flatpak_system *fp, const char *app_id); +}; + +// Flatpak application +struct q20_flatpak_app { + struct list_head list; + char *app_id; + char *name; + char *description; + char *version; + + // Application metadata + char *icon_path; + char *desktop_file; + char *executable; + + // Sandbox configuration + struct q20_flatpak_sandbox *sandbox; + struct q20_flatpak_permissions *permissions; + + // State + bool installed; + bool running; + pid_t process_id; +}; + +// Flatpak sandbox +struct q20_flatpak_sandbox { + struct q20_flatpak_app *app; + + // Namespace isolation + bool network_namespace; + bool pid_namespace; + bool mount_namespace; + bool uts_namespace; + bool ipc_namespace; + bool user_namespace; + + // Resource limits + struct rlimit cpu_limit; + struct rlimit memory_limit; + struct rlimit disk_limit; + + // Mount points + struct list_head mounts; + char *root_path; + char *data_path; + char *cache_path; +}; + +// Flatpak operations +static int q20_flatpak_install_app(struct q20_flatpak_system *fp, const char *app_id) +{ + FlatpakInstallation *installation = fp->installation; + FlatpakRemote *remote; + GCancellable *cancellable; + int ret; + + // Get default remote + remote = flatpak_installation_get_default_remote(installation, cancellable, NULL); + if (!remote) { + ret = -ENOENT; + goto install_failed; + } + + // Install application + ret = flatpak_installation_install(installation, remote->name, app_id, NULL, + cancellable, NULL); + if (ret) { + dev_err(fp->dev, "Failed to install app %s: %s\n", app_id, g_strerror(ret)); + goto install_failed; + } + + // Create application structure + ret = q20_flatpak_create_app(fp, app_id); + if (ret) + goto install_failed; + + dev_info(fp->dev, "App %s installed successfully\n", app_id); + return 0; + +install_failed: + return ret; +} + +static int q20_flatpak_launch_app(struct q20_flatpak_system *fp, const char *app_id) +{ + struct q20_flatpak_app *app; + struct q20_flatpak_sandbox *sandbox; + pid_t pid; + int ret; + + // Find application + app = q20_flatpak_find_app(fp, app_id); + if (!app) { + ret = -ENOENT; + goto launch_failed; + } + + // Create sandbox + sandbox = q20_flatpak_create_sandbox(app); + if (!sandbox) { + ret = -ENOMEM; + goto launch_failed; + } + + // Setup sandbox + ret = q20_flatpak_setup_sandbox(sandbox); + if (ret) + goto launch_failed; + + // Launch application + pid = q20_flatpak_fork_and_exec(app, sandbox); + if (pid < 0) { + ret = pid; + goto launch_failed; + } + + app->running = true; + app->process_id = pid; + + dev_info(fp->dev, "App %s launched with PID %d\n", app_id, pid); + return 0; + +launch_failed: + return ret; +} +``` + +#### 6.3.2 Container Security +**Security Implementation:** +```c +// Security manager +struct q20_security_manager { + struct device *dev; + + // Security policies + struct q20_security_policy *default_policy; + struct list_head app_policies; + + // Capability management + struct q20_capability_set *allowed_capabilities; + struct q20_capability_set *denied_capabilities; + + // SELinux integration + struct q20_selinux_context *selinux_ctx; + + // Operations + int (*apply_policy)(struct q20_security_manager *sm, struct q20_flatpak_app *app); + int (*check_permission)(struct q20_security_manager *sm, const char *permission); + int (*audit_event)(struct q20_security_manager *sm, const char *event); +}; + +// Security policy +struct q20_security_policy { + struct list_head list; + char *app_id; + + // Permissions + struct q20_permission_set *permissions; + struct q20_permission_set *denied_permissions; + + // Network access + bool allow_network; + char **allowed_hosts; + int num_allowed_hosts; + + // File system access + struct q20_fs_permission *fs_permissions; + int num_fs_permissions; + + // Device access + struct q20_device_permission *device_permissions; + int num_device_permissions; +}; + +// Security operations +static int q20_security_apply_policy(struct q20_security_manager *sm, + struct q20_flatpak_app *app) +{ + struct q20_security_policy *policy; + int ret; + + // Find app-specific policy + policy = q20_security_find_policy(sm, app->app_id); + if (!policy) { + policy = sm->default_policy; + } + + // Apply capability restrictions + ret = q20_security_apply_capabilities(sm, app, policy); + if (ret) + return ret; + + // Apply SELinux context + ret = q20_security_apply_selinux(sm, app, policy); + if (ret) + return ret; + + // Apply network restrictions + ret = q20_security_apply_network(sm, app, policy); + if (ret) + return ret; + + // Apply file system restrictions + ret = q20_security_apply_filesystem(sm, app, policy); + if (ret) + return ret; + + // Apply device restrictions + ret = q20_security_apply_devices(sm, app, policy); + if (ret) + return ret; + + return 0; +} + +static int q20_security_check_permission(struct q20_security_manager *sm, + const char *permission) +{ + struct q20_security_policy *policy; + struct q20_flatpak_app *app; + + // Get current app context + app = q20_flatpak_get_current_app(); + if (!app) + return -EACCES; + + // Find app policy + policy = q20_security_find_policy(sm, app->app_id); + if (!policy) { + policy = sm->default_policy; + } + + // Check if permission is denied + if (q20_permission_set_contains(policy->denied_permissions, permission)) { + q20_security_audit_event(sm, "permission_denied"); + return -EACCES; + } + + // Check if permission is allowed + if (q20_permission_set_contains(policy->permissions, permission)) { + return 0; + } + + // Check default policy + if (q20_permission_set_contains(sm->default_policy->permissions, permission)) { + return 0; + } + + q20_security_audit_event(sm, "permission_denied"); + return -EACCES; +} +``` + +### 6.4 Secure Boot + +#### 6.4.1 Boot Verification +**Secure Boot Implementation:** +```c +// Secure boot manager +struct q20_secure_boot { + struct device *dev; + + // Key management + struct q20_key_store *key_store; + struct q20_public_key *platform_key; + struct q20_public_key *db_key; + struct q20_public_key *dbx_key; + + // Verification state + bool secure_boot_enabled; + bool verification_enabled; + enum boot_verification_level verification_level; + + // Operations + int (*verify_kernel)(struct q20_secure_boot *sb, const char *kernel_path); + int (*verify_initramfs)(struct q20_secure_boot *sb, const char *initramfs_path); + int (*verify_module)(struct q20_secure_boot *sb, const char *module_path); + int (*enroll_key)(struct q20_secure_boot *sb, struct q20_public_key *key); + int (*revoke_key)(struct q20_secure_boot *sb, struct q20_public_key *key); +}; + +// Key store +struct q20_key_store { + struct device *dev; + + // Key storage + struct list_head keys; + char *key_store_path; + + // Key operations + int (*add_key)(struct q20_key_store *ks, struct q20_public_key *key); + int (*remove_key)(struct q20_key_store *ks, const char *key_id); + int (*find_key)(struct q20_key_store *ks, const char *key_id, struct q20_public_key **key); + int (*list_keys)(struct q20_key_store *ks, struct list_head *keys); +}; + +// Public key +struct q20_public_key { + struct list_head list; + char *key_id; + char *key_name; + enum key_type type; + + // Key data + void *key_data; + size_t key_size; + enum key_algorithm algorithm; + + // Metadata + time_t creation_time; + time_t expiration_time; + bool revoked; +}; + +// Secure boot operations +static int q20_secure_boot_verify_kernel(struct q20_secure_boot *sb, const char *kernel_path) +{ + struct q20_signature *signature; + struct q20_public_key *key; + void *kernel_data; + size_t kernel_size; + int ret; + + // Load kernel + ret = q20_file_load(kernel_path, &kernel_data, &kernel_size); + if (ret) + return ret; + + // Extract signature + ret = q20_signature_extract(kernel_data, kernel_size, &signature); + if (ret) + goto verify_failed; + + // Find signing key + ret = q20_key_store_find_key(sb->key_store, signature->key_id, &key); + if (ret) + goto verify_failed; + + // Verify signature + ret = q20_signature_verify(kernel_data, kernel_size, signature, key); + if (ret) + goto verify_failed; + + // Check key revocation + if (key->revoked) { + ret = -EKEYREVOKED; + goto verify_failed; + } + + // Check key expiration + if (key->expiration_time && key->expiration_time < current_kernel_time().tv_sec) { + ret = -EKEYEXPIRED; + goto verify_failed; + } + + dev_info(sb->dev, "Kernel verification successful\n"); + ret = 0; + +verify_failed: + kfree(kernel_data); + q20_signature_free(signature); + return ret; +} + +static int q20_secure_boot_enroll_key(struct q20_secure_boot *sb, struct q20_public_key *key) +{ + int ret; + + // Validate key + ret = q20_public_key_validate(key); + if (ret) + return ret; + + // Add to key store + ret = q20_key_store_add_key(sb->key_store, key); + if (ret) + return ret; + + // Update secure boot database + ret = q20_secure_boot_update_db(sb, key); + if (ret) + goto enroll_failed; + + dev_info(sb->dev, "Key %s enrolled successfully\n", key->key_name); + return 0; + +enroll_failed: + q20_key_store_remove_key(sb->key_store, key->key_id); + return ret; +} +``` + +#### 6.4.2 Bootloader Integration +**Bootloader Security:** +```c +// Bootloader security +struct q20_bootloader_security { + struct device *dev; + + // Bootloader state + bool secure_boot_enabled; + bool fastboot_unlocked; + bool oem_unlocked; + + // Verification + struct q20_verification_chain *verification_chain; + struct q20_boot_policy *boot_policy; + + // Operations + int (*verify_boot_image)(struct q20_bootloader_security *bs, const char *image_path); + int (*lock_bootloader)(struct q20_bootloader_security *bs); + int (*unlock_bootloader)(struct q20_bootloader_security *bs); + int (*set_boot_policy)(struct q20_bootloader_security *bs, struct q20_boot_policy *policy); +}; + +// Boot policy +struct q20_boot_policy { + char *policy_name; + + // Verification settings + bool verify_kernel; + bool verify_initramfs; + bool verify_device_tree; + bool verify_modules; + + // Boot options + bool allow_unsigned_kernels; + bool allow_custom_kernels; + bool require_secure_boot; + + // Recovery options + bool allow_recovery_boot; + bool allow_fastboot; + bool allow_adb; +}; + +// Bootloader operations +static int q20_bootloader_verify_boot_image(struct q20_bootloader_security *bs, + const char *image_path) +{ + struct q20_boot_image *boot_image; + struct q20_signature *signature; + int ret; + + // Load boot image + ret = q20_boot_image_load(image_path, &boot_image); + if (ret) + return ret; + + // Verify kernel if required + if (bs->boot_policy->verify_kernel) { + ret = q20_secure_boot_verify_kernel(bs->secure_boot, boot_image->kernel_data); + if (ret) + goto verify_failed; + } + + // Verify initramfs if required + if (bs->boot_policy->verify_initramfs) { + ret = q20_secure_boot_verify_initramfs(bs->secure_boot, boot_image->initramfs_data); + if (ret) + goto verify_failed; + } + + // Verify device tree if required + if (bs->boot_policy->verify_device_tree) { + ret = q20_secure_boot_verify_device_tree(bs->secure_boot, boot_image->dtb_data); + if (ret) + goto verify_failed; + } + + dev_info(bs->dev, "Boot image verification successful\n"); + ret = 0; + +verify_failed: + q20_boot_image_free(boot_image); + return ret; +} +``` + +## 📊 Deliverables + +### 6.5 Complete Packaging System +**Requirements:** +- Functional package manager +- OSTree update system +- Flatpak application sandboxing +- Secure boot implementation +- Update delivery system + +### 6.6 Update Infrastructure +**Components:** +- Update server +- Delta update system +- Rollback mechanism +- Update verification +- Distribution system + +### 6.7 Security Framework +**Features:** +- Application sandboxing +- Permission management +- Secure boot chain +- Key management +- Audit logging + +## ⏱️ Timeline + +**Week 1-2**: System packaging architecture +**Week 3-4**: OSTree update system +**Week 5-6**: Delta updates +**Week 7-8**: Flatpak integration +**Week 9-10**: Security framework +**Week 11-12**: Testing and deployment + +**Total Duration**: 12 weeks (3 months) + +## 🎯 Success Criteria + +Phase 6 is successful when: +1. Complete packaging system is functional +2. Update system is reliable and secure +3. Application sandboxing is working +4. Secure boot is implemented +5. Update delivery is automated + +## 🚨 Risk Mitigation + +**High-Risk Scenarios:** +- Update system failures → Implement robust rollback mechanisms +- Security vulnerabilities → Comprehensive security auditing +- Package conflicts → Dependency resolution and conflict detection +- Boot failures → Multiple boot paths and recovery options +- Storage corruption → Data integrity checks and backup systems \ No newline at end of file